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PRE – BOARD EXAMINATION 2019

According to the Syllabus of Board of Intermediate Education, Karachi.

ENGLISH (C) NORMAL PAPER - I Time: 20 Minutes (Science Group) Max. Marks: 20

SECTION ‘A’ COMPULSORY (MULTIPLE CHOICE QUESTIONS) Q.1 Choose the correct answer for each from the given options:

i) The Count’s Revenge presents:

� Turkish society � Arabian society � French society � German society

ii) The poem lines from the lay of the last minstrel refers to the man who is:

� Selfless � Patriotic � Unpatriotic � Honest

iii) In the poem “Incident of the French Camp, the commander is:

� Churchill � Stalin � Napolean � Hitler

iv) In the poem “The Abbott of Canterbury” the word “savior”:

� Moses � David � Christ � Abraham

v) Bravery and discipline is the theme of:

� The Abbot of Canterbury � Lay of the last minstrel

� Incident of the French Camp � Birkenhead Drill

vi) Mill’s bombs were used in the:

� Second World War � War Between Japan and Russia

� First World War � War Between Russia, Japan and the USA

vii) “Man in the Street” means:

� an ordinary man � a man without home

� a beggar � an illiterate person

viii) Mighty heart refers to the city of:

� Paris � Cape Town � London � Ratisbon

ix) Chaucer wrote:

� Lyrical Ballads � Parardise lost � Canterbury tales � The Prelude

x) Professor Henry Corrie represents:

� Love � Wisdom � Patriotism � Materialism

xi) Ghulam Ali Allana is a poet of the:

� 18th Century � 20th Century � 19th

Century � 21st Century

xii) The population of Pakistan at the time of independence was:

� eighty million � Seventy million� Fifty million � forty million

xiii) The Secretary General of the UN is elected by:

� UNESCO � FAO

� The Security Council � The General Assembly

xiv) The theories concerning light and gravity were proposed by:

� Einstein � Galileo � Newton � Addison

xv) “Madam, I cannot stay to agrue”. The speaker is:

� Monte Cristo � Morrel � Albert � Beauchamp

xvi) The synonym of “revenge” is:

� apology � vengeance � forgetfulness � forgiveness

xvii) “You are free”, what kind of freedom has been grantedy by Quaid - e - Azam:

� Political � Social � Commerical � Religious

xviii) UNO has achieved success only in:

� Preventing war� Welfare work � Spreading war � Controlling power

xix) Birkenhead came across the tragedy on:

� 25th

February 1851 � 25th February 1852

� 25th February 1853 � 25th February 1841

xx) “Under the greenwood tree” is composed by:

� Leigh Hunt � Coventry Patmore� Sir Henry Wotton � William Shakespeare




ENGLISH (C) NORMAL PAPER - I Time: 2 Hours 40 Min (Science Group) Max. Marks: 80

SECTION ‘B’ (SHORT - ANSWER QUESTIONS) MARKS: 50

NOTE: Answer any TEN questions from this section, selecting at least two part questions from each sub-section.

SUB – SECTION I (Intermediate English Book – I)

Q.2(i) How can radio be considered a miracle? ii) What is meant by the universality of Science and Mathematics? iii) What were the feelings of Quaid-e-Azam when he came to Karachi on August 7, 1947? iv) Why were Baron and Baroness angry with Amalie?

SUB – SECTION II (English Verse: PART – I)

v) According to G. Allana, what is the thing that prevents man from approaching God? OR What is the theme of the poem “I had reached your doorsteps”? vi) How is an unpatriotic man punished according to Walter Scott? vii) What were the intelligent answers given by the poor shepherd to King John in the poem “The Abbot of Canterbury”? viii) What is a sonnet? What inspired Wordsworth to write “Sonnet composed upon Westminster

Bridge”?

SUB – SECTION III (Two One Act Plays)

ix) Do you think Mrs. Meldon was justified in killing her brother? Comment. x) What was the past story of Count of Monte Cristo? xi) What is an “organized butchery of young boys” according to Mrs. Meldon? xii) Write dominating qualities of Albert?

SUB – SECTION IV (Grammar)

xiii) Correct the errors / omissions of verbs, prepositions and articles: a) Early rising is good (to) health. b) He is fond for music. c) The Birkenhead sank ____ 25th February 1851. d) I don’t believe ____ business hospitality. e) He (keep) looking at her, wondering where he (see) her before.

xiv) Use each word in sentences from any THREE of the following pairs to distinguish the meaning (total SIX sentences): a) meet, meat b) dear, deer c) heard, herd d) story, storey e) not, knot f) know, no

xv) Write the meanings of any five of the following words or phrases: a) on the same page b) abolish c) prestige d) bowers e) betrothed f) in black and white g) au revoir h) vexing

SECTION ‘C’ (DETAILED - ANSWER QUESTIONS) MARKS: 30

NOTE: Answer ALL questions from this section. Q.3 Write a letter to the editor of a newspaper expressing your concern over the increasing traffic jams

in the city. OR Write a story based on the moral “Slow and steady wins the race” or “Pride hath a fall”.

Q.4 Write a paragraph of about 120 to 150 words on any ONE of the following topics: i) How can Pakistan progress? ii) PSL 2019 iii) Terrorism iv) Water Crisis

Q.5 Translate any FIVE of the following sentences into English:

(i �� (ii � �� (iii ��

(iv � ��!"��#��$�%�&��' (v �(�)�*��+�,�$�-�� (vi ��.�/��0��1�2�

(vii �3��(�)��4��*��5�6

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PHYSICS PAPER - I

Time: 20 Minutes Marks: 17

SECTION ‘A’ COMPULSORY (MULTIPLE CHOICE QUESTIONS)

Q1. Choose the correct answer for each from the given options:

i) Angle between the vector i + j and k + j:

� 600 � 90

0 � 180

0 � 0

0

ii) An object performing simple harmonic motion has: � constant speed � varying amplitude � varying period � varying acceleration

iii) A body initially at rest explodes into two fragments of masses M1 and M

2. Fragments move apart

with speed V1 and V

2 respectively, the ratio

V1

V2 is equal to:

� M1

M2 �

M2

M1 � �M1

M1 � �M1

M2

iv) An object is launched with kinetic energy E at an angle of 450 with the horizontal. Assuming friction to be negligible the kinetic energy of the object at the maximum height becomes: � 0.5 E � 0.71 E � Zero E � E

v) The transverse nature of light was confirmed by: � Interference � Diffraction � Polarization � Dispersion

vi) Tides are formed due to the gravitational attraction of __________: � Sun only � Moon only � Both sun and moon � None of these

vii) A spring is cut into three equal parts. The spring constant of each part would be _________: � Doubled � Halved � Remain unchanged � Tripled

viii) If the momentum of a moving body increased by 20% then K.E increases by: � 44% � 55% � 66% � 77%

ix) Dimensions of coefficient of viscosity is: � [MLT] � [ML-1T] � [MLT-1] � [ML

-1T

-1]

x) Angular momentum of a particle changes from 15 Js to 25 Js in 0.2 sec. The net torque is: � 5Nm � 25 Nm � 30 Nm � 50 Nm

xi) Two convex lenses of focal length 20 cm and 4 cm are placed in such a way that the parallel rays entering the first, leaving the second as parallel. The distance between the lenses is _________: � 16 cm � 5 cm � 80 cm � 24 cm

xii) When the source and listener are moving in the same direction with the same velocity then ratio between real and apparent frequency of sound will be equal to: � 0 � 2 � 1 � 0.5

xiii) When a spinning dancer suddenly pulls his arms in close to his body, the angular velocity will be: � Double � increase � decrease � remain the same

xiv) In the terrestrial telescope, the central lens is used to: � erect the image � increase magnifying power � Increase resolving power � All of these

xv) Polarization of light due to tourmaline crystal takes place: � Reflection � Selective absorption � Refraction � Diffraction

xvi) An object of mass ‘m’ falls freely in the absence of air friction with acceleration ‘a’, if it’s mass becomes 2m, then the acceleration will be: � 2a � 4a � a � ½ a

xvii) A light and a heavy body have equal momentum which one has greater kinetic energy? � Light body � Heavy body � Both have same kinetic energy � None

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PHYSICS PAPER - I Time: 2 Hour 40 Minutes Max. Marks: 68

SECTION ‘B’ (SHORT ANSWER’S QUESTIONS) MARKS: 40

NOTE: Answer any TEN questions from this section. All question carry equal marks.

Q2. i) The magnitude of the resultant of two equal vectors is equal to the magnitude of either vector, find the angle between them. OR

An object moves along a straight line from (7, 3, -5) to (2, 5, -2) when a force of �� = 3i� + 4j ̂+ 5k� acts on it. Find the work done by the force.

ii) A 5000gm particle moves along xy –plane. At an instant its displacement coordinates are (2, 4) m and velocity components are (5i +4j) m/s. Determine its angular momentum and torque just after every 2 seconds. OR

Two bodies of masses 100 Kg and 10 kg are placed 1m from each other. Treating the heavy body is at origin, determine the centre of mass of the system of particles. OR

A 15m ladder weighing 350N rests against a smooth vertical wall at a point 12 m above the ground. The centre of gravity is one – third the way up. A boy of mass 47 Kg climbs half way up the ladder. Assuming that the wall is smooth, find the reaction of the ground and the wall.

iii) Show that torque is equal to rate of change of angular momentum. OR

Define moment of force and moment of couple. Show that the moment of couple is independent of choice of origin.

iv) Define weightlessness? How artificial gravity created in an orbiting space – craft? Obtain the relevant expression for it. OR

State Newton’s law of gravitation and discuss the variation of ‘g’ with height.

v) An object weighs 500N at the surface of the Earth. If the object weighs 535N on the surface of the Saturn, Calculate the Mass of Saturn in terms of M

E , taking into consideration that Radius of Saturn

is 9.5 times of RE. OR

A simple pendulum completes 4 vibrations in 8 seconds on the surface of the earth. Find its time period on the surface of the moon where the acceleration due to gravity is one-sixth that of the earth.

vi) A 50 gm bullet is fired into the block of mass of 15 Kg that is suspended by a long cord so that it can swing. If the centre of gravity of the block rises by 15 cm then calculate the speed of bullet. OR

A wooden ball of mass 10gm is suspended by a thread. The horizontal current of air blows it one side so that thread makes an angle of 600 with the vertical. Find the tension in the thread and the force of air current.

vii) A 4 meter long string having a mass of 0.008kg is stretched horizontally by passing one end over a pulley and attaching a 1Kg of mass to it. Find the speed of transverse wave in the string and frequency of third harmonic. OR

Find the velocity of sound in a gas in which two waves of wavelength 0.80m and 0.81m produce four beats per seconds.

viii) Discuss the aberration of lenses. How can they be removed? OR

Describe the construction and working of Michelson interferometer? OR

Two thin lenses of focal length f1 and f

2 are placed in contact. Find the equation for the focal length

of their combination. Also find the power of this combination.

ix) A Source of sound and a listener are moving towards each other with the velocities which are 0.5 times and 0.2 times the speed of sound respectively. If the source is emitting 2000 Hz tone. Calculate the frequency heard by listener. OR

A sound wave of frequency 4000Hz is initially propagating in a region where temperature is 27oC. Calculate the percent change in wavelength when it enters another region at 10oC.

x) Watchmaker use a converging lens of focal length 5 cm as magnifying glass to see small spring. Then calculate (a) the distance of the spring from the lens. (b) the angular magnification. OR

If the radius of the 5th

dark Newton’s ring is 3mm when light of wavelength 5.89 x 10-7 m is used.

What will be the radius of curvature of the lower surface of the leus used?

xi) Explain Work-Energy theorem? OR Define conservative force and field. Prove that the gravitational field is a conservative field.

xii) A 98N object is dropped from a height of 10m. It hits the ground with 12m/s. How large was the

frictional force acting upon it. OR A horse pulls a cart horizontally with a force of 40lb at an angle of 300

above the horizontal and move along at a speed of 6 miles per hour. How much work does the horse do in 10 minutes and what is the power output of the horse in horse power. (1 mile = 5280 ft, 1hp = 550 lb. ft sec-1)

OR A pump is needed to lift the water through the height of 3.5m at the rate of 500gm per minute.

What must the minimum horse power of the pump be?

xiii) Discuss a process in which two slightly different frequencies superimpose with each other. Derive

the relevant expression and write the conditions for good acoustics. OR

What is simple pendulum? Prove that the motion of a simple pendulum is simple harmonic. Derive the expression for its time period.

xiv) Tarzan swings on a vine of length 4m in a vertical circle under the influence of gravity. When vine makes an angle of 200

with the vertical, Tarzan has a speed of 5m/s. Find his centripetal

acceleration, tangential acceleration and resultant acceleration. OR

Define centripetal acceleration. Derive the relevant mathematical expressions for it.

xv) An X – ray beam of wavelength λ undergoes a first order reflection from a crystal when its angle of

incident to a crystal face is 26.50 and an X – ray beam of wavelength 0.097nm undergoes a third

order diffraction when its angle of incident is 60.00. If both beams reflect from the same plane find

(a) Inter –planer spacing (b) wavelength of first beam. OR

If a diffraction grating produces 1st order spectrum of light of wave length 6 x 10-7m at an angle of

200 from the normal, what is its spacing and the number of lines per mm? OR

What are the conditions of observing interference of light? How interference is differ from Diffraction?

xvi) Give a mathematical proof that all objects irrespective their mass slides downward on a frictionless

inclined plane with same acceleration. OR

Two vectors F1 and F

2 have an angle θ with each other. Prove that their resultant is of magnitude,

�F1 + 2

F2 + 2

2 F1 F2 cos θ

SECTION – C (DETAILED ANSWER’S QUESTIONS) MARKS: 28

NOTE: Answer any Two questions from this section. All question carry equal marks. Q.3(a) Define scalar and vector product? Derive expression for magnitude and direction of resultant of

two forces F1 and F

2 acting at angles θ

1 and θ

2 respectively with positive x – axis. OR

What is elastic and inelastic collision? Derive expression of final velocity for two non – rotating spheres moving in an isolated system during an elastic collision.

(b) An object is thrown in xy – plane at an angle θ with horizontal, having initial velocity V0.

i) Find the time of its flight ii) Maximum height it can reach iii) Range

Q.4(a) By using the ray diagram, give the construction and working of Compound microscope OR Astronomical telescope. Also drive the equation for its magnifying power.

Q4.(b) What do you mean by Doppler’s effect? Derive expression of apparent frequency when, i) Listener moves away from a stationary source ii) Source moves towards stationary listener.

OR

Give Newton’s formula for speed of sound in air, discuss the error in it and correction made by Laplace. What is the effect of temperature on speed of sound? Give mathematical treatment.

Q.5 (a) Explain the Young’s double slit experiment for the interference of light. Drive the equation for

fringe spacing. OR

What are Newton’s rings? Derive the expression for the radius of the Nth bright ring.

Q.5(b) What are standing waves? Give their analytical treatment. Also derive expression for single double and triple segments and show that frequencies are quantized.

OR

Q.5(b) A particle is in a state of uniform circular motion. Show that its projection along one of its diameters executes simple harmonic motion. Derive the expressions for instantaneous velocity of projection.




CHEMISTRY PAPER - I

Time: 20 Minutes Marks: 17

SECTION ‘A’ COMPULSORY (MULTIPLE CHOICE QUESTIONS) Q.1 Choose the correct answer for each from the given options: i) On emission of Alpha particles, 92U

238 changes into _______.

� 90Th234 � 88Ra226 � 84Po209 � 91Pa231

ii) This color has the shortest wavelength in the visible spectrum of light.

� Red � Violet � Green � Yellow

iii) This is not primary bond:

� Ionic Bond � Covalent Bond

� Dative Bond � Hydrogen Bond

iv) The active mass of 4g of hydrogen is _______.

� 4 moles/cm3 � 4 moles/dm3 � 2 moles/cm3

� 2 moles/dm3

v) NaHSO4 is an example of _______.

� Normal Salt � Neutral Salt � Acidic Salt � Basic Salt

vi) On Kelvin scale absolute zero is equal to _______.

� 273.16 ◦C � 0 ◦C � 20 K � -273.16 ◦C

vii) In S.I system, the unit of pressure is _______.

� Pascal � Torr � Psi � Atmosphere

viii) The e/m ratio for positive rays is maximum for _______.

� Nitrogen � Helium � Hydrogen � Oxygen

ix) Which one of the following molecule has a dipole moment?

� CCl4 � CO2 � BeCl2 � H2O

x) The bonds present in Ethene (C2H4) molecules are _______.

� Five sigma & One pi-bond � Four sigma & Two pi-bonds

� Four sigma & One pi-bond � Five sigma & Two pi-bonds

xi) Which one of the following is an exothermic process?

� Ice Melting � Boiling Soup

� Water Evaporating � Condensation of Water Vapors

xii) For the reaction: 2SO2 + O2 2SO3 , the relationship between Kc and Kp is

_______.

� Kc = Kp � Kc>Kp � Kc<Kp � Kc>Kp

xiii) Which of the following same number of moles as 12g of Mg?

� 36g of H2O � 20g of Ca � 39g of Al � 12g of C

xiv) The oxidation number of oxygen in Hydrogen peroxide is _______.

� +2 � -2 � +1 � -1

xv) A solution having [OH-] = 1x10-7 M is _______.

� Acidic � Basic � Neutral � Amphoteric

xvi) This ion has greatest degree of hydration:

� Na+ � Mg+2 � Al+3 � K+

xvii) ZnSO4 and NiSO4 have same geometry, so these are _______.

� Allotropes � Isomorphs � Polymorphs � Isotopes

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CHEMISTRY PAPER - I

Time: 2 Hours 40 Minutes Max. Marks: 68


Atomic Masses: [C = 12 a.m.u , H = 1 a.m.u , O = 16 a.m.u , He = 4 a.m.u , Mg = 24 a.m.u]

NOTE: Attempt any TEN part questions. All questions carry equal marks.

Q.2i) Define any Four of the following: a) Limiting Reactant b) Significant Figures c) Enthalpy

d) Sublimation e) Order of Reaction f) Heat of Formation

ii) CH3OH + 3/2 O2 CO2 + 2H2O , What mass oxygen is required to burn 40gm of CH3OH for the above reaction. Also calculate the volume of CO2 gas at S.T.P? OR

Write the main postulates of Arrhenius Theory of Ionization. OR

State and explain Hess’s Law of constant Heat Summation with its application.

iii) State and explain Dalton’s Law of Partial Pressure with its applications. OR

Describe the Rutherford’s Atomic Model with its conclusion.

iv) Give scientific reasons for any Four of the following: a) Evaporation is a cooling process. b) A free falling drop of liquid is spherical. c) Water has higher boiling point than hydrogen fluoride. d) Na

+ ion is smaller in size than Na atom. e) Milk sours more rapidly in summer than winter. f) Ionization potential of N2 is greater than O2.

v-a) Write the electronic configuration of: �� S-2 (Z=16) �� 39Y �� 37X +

v-b) State Pauli’s Exclusion Principle and explain with the help of Helium.

vi) What is orbital hybridization? Explain Sp3 hybridization in Ethane. OR

Define Rate of reaction. What are the factors effecting rate of reaction and explain any two factors.

vii) Find the heat of formation of acetic acid at 25 ̊C:

a) 2C + 2H2+ O2 CH3COOH ∆H= ?

b) C + O2 CO2 ∆H= - 396 KJ/mol

c) H2 + ½ O2 H2O ∆H= - 296 KJ/mol

d) CH3COOH + 2O2 2CO2 + 2H2O ∆H= - 870.8 KJ/mol OR

Decomposition of N2O takes place according to the following equation:

2N2O 1000 K 2N2 + O2; ∆H = +ve What will be the effect on the rate of reaction when: �� Increase in concentration of O2 �� If we added glycerin

�� Decrease in temperature �� Decrease in pressure

viii-a) Calculate the Wave Number of spectral lines of hydrogen gas when electron jumps from 4th orbit to 2nd orbit.

viiii-b) What are Roentgen’s Rays? Give the relationship between X – Rays and Atomic Number.

ix) Define Radioactivity. Compare the properties of α, β and γ rays. OR

Name any four physical methods along with their observation to determine the rate of reaction. Also explain the chemical method used to determine the rate of reaction.

x) A mixture of H2, He and CH4 occupying vessel of volume 13 dm3 at 37 ◦C and pressure of

760 torr, the massesof H2 and He are 0.8g and 0.12g respectively. Calculate the partial pressure of each gas in mixture? OR

Define and explain Buffer solution with an example and also write its applications. xi-a) What is meant by Dipole Moment? Derive its unit and explain its significance. xi-b) Why aqueous solution of NH4Cl is acidic in nature while that of Na2CO3 is basic?

xii) Define Solubility. The solubility of Mg(OH)2 at 25 ◦C is 4.6x10-3gm/dm3. Find the solubility product of Mg(OH)2? OR

Should PbCrO4 precipitate from a solution prepared by mixing 100 cm3 of 2.5x10-4 M of Pb(NO3)2 and 300 cm3 of 1.5x10-8 M K2CrO4(Ksp of PbCrO4is 1.8x10-24 mol2 /dm6) ?

xiii) A weather balloon filled with Helium gas, having a volume of 1.250 dm3 , was released in

air at sea-level at 28 oC. When the temperature drops to 25 ◦C and the volume changes to 1.450 dm3

, Calculate the atmospheric pressure. OR

Define Standard Electrode Potential. How is electrode potential of Cu is determined? OR

1.8g of an organic compound contain ‘C’ , ‘H’ and ‘O’, on combustion gave 3.21g of CO2 and 1.322g of H2O. Calculate the empirical formula?

xiv) State Law of Mass Action. Drive the expression for Kc for the following reversible reaction. mA + nB xC + yD OR

What is Hydrogen Bond? What is its importance in biological process? How does it affect the physical properties of compounds?

xv) The rate constant for the decomposition of: 2NO2 2NO + O2 is 1.8x10-8 dm3 mole-1 sec-1. If the initial concentration of NO2 is

0.75M, what is the initial rate? Also calculate the rate constant when the initial concentration of NO2 is double? OR

What is meant by common ion effect? Discuss its application in the precipitation of the second group of basic radical in qualitative analysis


NOTE: Attempt any TWO questions from this section. All questions carry equal marks.

Q.3(a) What are cathode rays? Describe the experiment of their discovery and write their

properties. 05

Q.3(b) Differentiate between any Two of the following: 05

i) Crystalline Solid and Amorphous Solid

ii) Line Spectrum and Continuous Spectrum

iii) Polar and Non Polar Bond

iv) Sigma Bond and Pi Bond

v) Hydration and Hydrolysis

vi) Rate of Reaction and Rate Constant

Q.3(c) What is Co-ordinate Covalent Bond? Explain the formation of dative bond in POCl3 and

H3O+. 04

OR

Describe the postulates of Bohr’s Theory. Drive the expression for the radius of nth orbit

of hydrogen atom.

Q.4(a) Explain the shapes of BF3 and H2O molecules on the basis of the following: 05

i) Hybrid Orbital Model

ii) Electron Pair Repulsion Model

Q.4(b) State and explain Le-Chatelier’s Principle. Write its industrial application with respect to

Contact’s Process. 05

Q.4(c) For the reaction:

N2 + O2 2NO Kc is 0.110 at 2000 0C. Calculate the equilibrium concentration

of N2, O2 & NO when the initial concentrations of N2& O2 are 0.1M of each and the volume

of the vessel is 5liter. 04

OR

What is meant by electrolysis? Explain the electrolysis of CuCl2 Solution giving all the

necessary electrode reactions.

Q.5(a) Calculate the molarity of the solution prepared by dissolving 4.0 gm of NaOH in 500 cm3

solution? Also calculate the pH of a solution? 05

Q.5(b) Balance the following equations by ion electron method. 05

i) MnO4

-1 + SO

3

-2 Mn

+2 + SO

4

-2 (Basic Medium)

ii) Cr2O

7

-2 + I

2 Cr

+3 + IO

3

-1 (Acidic Medium)

Q.5(c) State and explain First Law of Thermodynamics. Drive the expression qp = ∆H and W = P∆V

04

OR

Write a note on any ONE of the following:

� Activation Energy � Viscosity � Surface Tension




COMPUTER SCIENCE PAPER - I

Time: 20 Minutes (Science General Group) Max. Marks: 15


Q.1 Choose the correct answer for each from the given options:

i) Voice/ Sound is a kind of:

� Light copy � Hard copy

� Soft Copy � Photo Copy

ii) Illegal Copy of Copyright software is called:

� Hacking � S/W Copy

� S/W piracy � Theft of Software

iii) The intersection of a row and column, in a Excel spread sheet is called:

� Macro � Cell

� Formula � Function

iv) A network topology that always uses control server is:

� Ring � Hybrid � Star � Bus

v) Coaxial cable, Fiber optic, Microwave & Satellite is example of:

� Communi mode � Topology

� Communication media � Communication transmitter

vi) Extension of Microsoft Excel file is:

� DOC � XLS � BMP � TXT

vii) Two dissimilar networks can be connected by a:

� Server � Bridge � Router � Gateway

viii) CPU is linked to every hardware device in the computer system by:

� ROM � Printer � BUS � None of them

ix) The ribbon is used in:

� Laser printer � Ink jet

� plotter � Dot Matrix Printer

x) A hard disk is divided into tracks, which are further subdivided into:

� Clusters � Sectors � Vectors � Heads

xi) During the PC boot process which of the following is active first:

� RAM BIOS � ROM BIOS � Cache � CMOS

xii) Which of the following chips can be reprogrammed with special electrical pulses:

� EPROM � PROM � ROM � EEPROM

xiii) The electrical path used to transfer data in CPU is called:

� Data Bus � Address Bus � Control Bus � Data Cable

xiv) The physical layout of network is called:

� Protocol � Ethernet � Topology � Router

xv) Set of rules that govern the communication between two computers:

� protocol � Ethernet � Topology � Router




COMPUTER SCIENCE PAPER - I Time: 2 Hours 40 Minutes (Science General Group) Max. Marks: 60


NOTE: Answer any TWELVE part questions from this section.

Q.2i) What is Data Processing? Show its steps with the help of a diagram.

ii) Enlist any SIX features of an operating system.

iii) What is Protocol? Enlist three different protocol.

iv) Write full forms of the following:

� HTML � ISO � IEEE

� WAN � HTTP � ASCII

v) Define the following:

� BUS � Cache Memory � Bar Code Reader

vi) Define Simplex, Half Duplex & Full Duplex.

vii) What are the main component of CPU?

viii What is a Computer Register?

ix) What is Language translator?

x) What is Software Piracy?

xi) Define the term “Bandwidth”.

xii) Why RAM is a volatile memory?

xiii) Differentiate between Secondary memory and Primary memory.

xiv) List the benefits of LAN.

xv) What is search Engine?

xvi)

HARDWARE INPUT/OUTPUT

OMR

MOUSE

LED

Touch Pad

Plotter

Scanner


1

NOTE: Attempt any TWO questions from this section. All questions carry equal marks.

Q.3(a) Explain various transmission modes.

Q.3(b) What is System Software? Discuss its types.

Q.3(c) Define antivirus and its different types.

Q.4 (a) Define Microwave System. How can it be useful in Communication System?

Q.4(b) Explain OSI model with Diagram.

Q.4(c) Explain the different type of Impact Printer.

Q.5(a) Describe the advantages and disadvantages of fiber optic cable.

Q.5(b) Describe instruction Fetch Cycle.

Q.5(c) What is Computer Crime? How is the Computer being used as tool of Crime?

2π

-1

π

1

0




MATHEMATICS PAPER - I Time: 15 Minutes Max. Marks: 20



i) If A = {0,1}, B = {1, 2}, C = {2 ,3} then Ax(B ∩ C): � {(0, 2), (1, 2)} � {1 ,3 } {0 ,1} � {(0, 2), (2, 1)} � {(2, 3), (1, 1)}

ii) If 3 a2 8

is singular matrix then value of a is:

� 2 � 3 � 12 � -12 iii) If 1 + 2x + 3x

2 + 4x

3______ is equal to:

� (1 – x)-2 � (1 + x)

2 � (1 – x)

-1 � ( 1+ x)

-1

iv) (n +1)!(n - 1)!

= ?

� n � n - 1 � n + 1 � n(n+1) v) If Sn = 2

n-1 is the sum of first n terms its second term is:

� 4 � 3 � 2 � 1

vi) ∑n2 = ?:

� n(n +1)

2 �

n(n +1) (2n+1)6

� �n(n +1)2

�2

� None

vii) The principle value of tan-1 tan (1)�:

� 1 � 0 � π4

� -1

viii) For an equation ax2 + bx + c = 0 if b

2 – 4ac > 0 then roots are:

� real and equal � Imaginary and unequal � real and uneqal � rational and equal

ix) Conjugate of -3 +4i is: � -3 - 4i � -3 + 4 i � 3 - 4 i � 3 + 4i

x) If z = 2 + 3i then |z| will be:

� √5 � √13 � √20 � 5 xi) How many radians does 120

0 equal to:

� 2π

3 � 2π �

3π

2 �

5π

6

xii) The expression 1+cosθ

2 is equal to:

� sin2θ � cos

2θ � sin

2 θ2

� cos2 θ2

xiii) Which is an identity element with respect to ordinary addition?

� 0 � 1 � -1 � 12

xiv) The nth term of 2, 4, 6, 8………: � n � n

2 � 2n � 4n - 1

xv) In a group the element e such that a *e = a then e is called: � Inverse element � Identity element � Binary element � None

xvi) Area of unit circle will be:

� π � π4

� π2 �

π2

xvii) If 4, a, 16 are in G.P then value of a is:

� 64 � ± 8 � ± √8 � 8 xviii) cosu + cosv = ?:

� 2cos u + v

2 cos

u - v2

� -2sin u + v

2 sin

u - v2

� 2sin u + v

2 cos

u - v2

� 2cos u + v

2 sin

u - v2

xix) It is graph of:

� sinx � cosx � tanx � sin

2x

xx) The probability to get a tail when a coin is tossed once:

� 12

� 13

� 14

� 16




MATHEMATICS PAPER - I Time: 2 Hours 40 Minutes Max. Marks: 80


ALGEBRA MARKS: 35 NOTE: Attempt any TEN part questions from this Section ‘B’ selecting at least THREE part

questions from each question. You may choose the tenth part question from any

one sub section. All question carry equal marks.

Q.2 COMPLEX NUMBER, ALGEBRA AND MATRICES

i) Solve 5x1/2 + x1/4 – 22 = 0 OR Solve √2x+7 + √x+3 =1

ii) For what value of K will 3x2 + 5x + k = 0 have: a) Equal roots b) Rational roots

iii) Define Singular matrix and for what value of λ the matrix becomes singular:

�λ 1 01 λ 20 2 λ

�

OR

Show that �a+x a aa a+x aa a a+x

� = x2 (3a + x)

iv) Solve the complex equation:

(x, y) (2, 3) = (-4, 7) OR

Find real and imaginary part of 1+ 2i

3 - 4i

v) If A = �1 3 22 4 79 8 6

� and A11 = -32, A12 = 51, A13 = -20, A21 = 22, A22 = -39, A23 = 19, A31 = 1,

A32 = 3, A33 = -2 Find A-1 (inverse matrix)

Q.3 GROUP, SEQUENCE, SERIES AND COUNTING PROBLEM

i) Find the value of n so that an+1+ bn+1

an + bn (may become the A.M between a and b)

ii) Prove the mathematical induction:

1

1.2 +

12.3

+ 1

3.4 +………….+

1n(n+1)

= n

(n+1)

iii) The product of three consecutive terms in G.P is 216 and sum of their product in pair is 156. Find the number.

OR

Insert 4 H.M between 12 and 485

iv) Show that:

√43

= 1 + 14

+ 1.34.6

+ 1.3.54.6.8

+ ………….

v) Obtain in simplified of x in (x - 1x2 )

15

OR

Find the first negative term in (1 + 2x)5/2

Q.4 TRIGONOMETRY

i) Draw the graph of sin2θ, -π ≤ θ ≤ π.

OR

Draw the graph of cosθ, -π ≤ θ ≤ π

ii) If tanθ = - 34

and ∫(θ) lies in second quadrant. Find remaining trigonometric function.

iii) Prove that:(ANY ONE)

a) sin7θ - sin5θ

cos7θ + cos5θ = tanθ b) sin6

θ + cos6θ = 1 – 3sin2

θcos2θ

c) tan3θ = 3tanθ - tan3

θ

1 - tan2θ

iv) Show that:

tan-1 � 1

13� + tan-1 �1

4� = tan-1 �1

3� OR sin-1

θ = cos-1 �1- θ2

v) Solve cosθ + cos2θ +1 = 0. OR √3 cosθ + sinθ - 2 = 0

SECTION ‘C’ (DETAILED ANSWER’S QUESTIONS) MARKS: 30 NOTE: Attempt any TWO questions including question # 5 which is compulsory.

Q.5(a) If the roots of a(b – c)x2 + b (c – a)x + c(a – b) = 0 are equal, prove that a, b, c are in H.P.

OR

Prove that a, b, c are in A.P, G.P or H.P according as:

a - bb - c

= aa

or ab

or ac

Q.5(b) If one side of a triangle y units long, another side 3 times as long, and angle between two sides measures 350, find the measure other two angles and the third side.

OR

Prove the law of sine Q.6(a) If |x| < 1 prove that:

√1+x+ �(1-x)

23

1+x�+ √1+x = 1 –

5x6

; nearly

Q.6(b) Solve the following system of equation using matrix method or Cramer’s rule: x + 2y + z =8 2x – y + z = 3 x + y – z = 0 Q.7(a) Solve: xy = 1 4y = 5x + 4

Q.7(b) if α, B are roots of px2 + qx +r = 0 form an equation whose roots are:

1

α3 , 1

β3




BIOLOGY PAPER – I

BOTANY (THEORY) Time: 15 Minutes (Science Pre – Medical Group) Max. Marks: 09



i) The inner most part of mitochondria is:

� stroma � cisterne � cristae � matrix

ii) Equisteum is commonly called:

� liverworts � Hornwort � mosses � Horsetail

iii) The shrinkage of cells due to water loss is termed as:

� deplasmolysis � plasmolysis

� imbibition � water potential

iv) Ulva reproducing by quadriflagellate zoospores have:

� 52 chromosomes � 13 chromosomes

� 26 chromosomes � 39 chromosmes

v) The organ of respiration and enzyme secretion in bacteria is:

� cell wall � cell membrane

� mesosome � capsule

vi) The plant of photorespiration is:

� C2 plant � C1 plant � C4 plant � C3 plant

vii) Late blight of potato is caused by:

� puccinia � agaricus � ustilago � phytophatora

viii) Non vascular plants are:

� rhynia � funaria � selaginella � fern

ix) Hepatitis transmits from mother to child is:

� Hep A � Hep D � Hep B � Hep C

x) Spikelet inflorescence belongs to family:

� Solanaceae � mimoceae � rosacea � Both A and B

xi) Seed plants are included in:

� pteropsida � lycopsida � spermospida � psilopsida

xii) Lysosomal storage disease resulting in blindness is:

� taysacch � Krabbes � Gauchers � Both A and C

xiii) Yeast a unicellular oraganism belongs to:

� prokaryotes � protoctista � fungi � None of these

xiv) Chromosomes with equal arms:

� metacentric � submetacentric� telocentric � acrocentric

xv) Cell membrane is composed of:

� carbohydrates and proteins � only proteins

� lipids and proteins � carbohydrates and lipids

xvi) The amount of energy in each trophic level of ecosystem is:

� increased � decreased � fixed � None of these

xvii) Flow of energy on ecosystem is:

� cyclic � non cyclic � fixed � None of these

xviii) Water potential of pure water is:

� -5 � 5 � 1 � 0




BIOLOGY PAPER – I

BOTANY (THEORY)

Time: 1 Hour 45 Minute (Science Pre – Medical Group) Max. Marks: 36


Q.2 Answer any TEN questions. All questions carry ONE mark. Answer should not be

exceeding than 2-3 lines:

i) Why transpiration is a necessary evil? ii) Write floral formula of Solanaceae. OR Define Mesosomes and its functions .

iii) Explain the term heteromorphic alternation of generation with an example. OR Why biologists consider protoctists as polyphyletic group of organisms?

iv) What is virion? OR Why photorespiration is useless process?

v) What is nomenclature? OR Write a note on economic losses of fungi.

vi) Define guttation. vii) Name the three pathways through which water enters xylem. OR

Write the botanical names of PEACH BRINGAL, APPLE, TOMATO and ILMLI. viii) Why ribosomes are called protein factories? ix) Draw an outline of classification of plant kingdom. x) What is hepatitis? OR Write the hierarchy of biologic classification.

xi) Name the three types of genetic recombination and explain any one. xii) What is stomata? Name the factors affecting the openings and closings of stomata. xiii) Define lactic acid fermentation. xiv) Why ATP is known as Energy currency of the body?

xv) Define diffusion and osmosis. OR Write the note on facilitated diffusion.

NON – REASONING QUESTIONS

Q.3 Answer any FIVE questions. All questions carry TWO marks. Answer should not be

exceeding than 5 lines:

i) Write down the economic importance of family solanaceae. OR

Write a short note on Mitochondria OR Golgi apparatus.

ii) Explain the structure of viruses. OR Write a note on phytophthora?

iii) Write a note on evolution of leaf with aid of diagram. iv) What do you know about the composition of cell wall? OR

Draw the labelled diagram of L.S of female cone of pinus OR Prothallus of fern.

v) Write the names of three important stages of aerobic respiration. OR

How mycorrhizae benefit plants?

vi) Describe chemiosmotic ATP synthesis OR Write two uses and misuses of antibiotics.

vii) Write the importance of cyanobacteria. OR Classify bacteria on the basis of respiration.

SECTION ‘C’ (DESCRIPTIVE ANSWER’S QUESTIONS) MARKS: 14

NOTE: Answer any TWO questions from this Section. All questions carry equal marks.

Q.4 Describe ascent of sap and describe its mechanism. OR Describe the life cycle of moss and draw its diagram.

Q.5 Give the floral characters, floral formula, floral diagram and economic importance of family Rosacea or Fabaceae. OR Write about the life cycle of Ascomycota or Zygomycota.

Q.6 Explain the process of glycolysis and draw its stages. OR Explain kreb’s cycle and also draw the cycle.




BIOLOGY PAPER I

ZOOLOGY (THEORY) Time: 15 Minutes (Science Pre – Medical Group) Max. Marks: 08



i) Haemoglobin carries __________ times more O2 than plasma:

� 20 � 30 � 50 � 70

ii) Trypanosoma belongs to:

� Sarcodina � Ciliata � flagellata � Hirudinea

iii) The stimulus for contraction of heart originates from:

� AV node � SA node � Aortic bodies � Carotid bodies

iv) Glucose + fructose:

� Lactose � Maltose � Sucrose � Galactose

v) Reterogressive metamorphosis occur in:

� hemichordata � Urochordata � chordata � Parasites

vi) __________ is called living fossil:

� Limulus � Starfish � Archeopetryx � None of these

vii) ________& acts on protein and digest them:

� Trypsin � Lipase � Amylase � Lysosome

viii) Birds respire by the process of:

� Complete ventilation � Incomplete ventilation

� T cells � B cells

ix) Oil is the example of __________:

� saturated acylglycerol � Un-saturated acylglycerol

� steroid � phospholipid

x) _________ is a carrier in function:

� mRNA � tRNA � DNA � Nucleotide

xi) Hemoglobin can carry ________ molecules of oxygen:

� 1 � 2 � 3 � 4

xii) _________ Belongs to phylum chordates:

� A pearl oyster � Lamprey � Hydra � Loligo

xiii) _________ cells have chloroplast:

� Goblet cells � RBCs � Guard cell � None of these

xiv) Living part of blood is:

� Plasma � Cells � Platelets � Serum

xv) Moulting occurs in following:

� Arthropods � Mollusca � Mammals � Sponges

xvi) Bat belongs to:

� Pouched mammal � Placental mammals

� Aves � Cnidaria




BIOLOGY PAPER I

ZOOLOGY (THEORY) Time: 1 Hours 45 Minutes (Science Pre – Medical Group) Max. Marks: 32

SECTION ‘B’ (SHORT - ANSWER QUESTIONS) MARKS: 20 Q.2 Answer any FIVE questions in all. FIVE from reasoning questions and FIVE from non-

reasoning questions: a) REASONING QUESTIONS

i) Why leucocytes are called soldiers of the body? OR

Why is hydroponics important to our world of 21st century?

ii) How does enzyme help in speeding up reactions?

iii) Why does planaria contains such immensely branched intestine?

iv) How is inflammation beneficial for our immune system?

v) Why does plasma carry less oxygen than blood itself in humans? OR

If an organism eats sugar what are the enzymes that mainly encountered by it for its

digestion? OR

Why does digestion of protein not take place in oral cavity like carbohydrates?

vi) Why water is a universal solvent? OR

How are lungs of birds known to have the best and efficient respiratory system?

vii) Why are amphibian's unsuccessful land dwellers?

viii) Why reptiles are successful land vertebrates?

b) NON-REASONING QUESTIONS

i) Define immunity and it's types with brief examples. OR

Differentiate between Active site and allosteric site And Tidal volume and residual

volume.

ii) Why open type circulation does not have high blood pressure? Explain with reference to

animal. OR What is oxygen debt?

iii) Explain digestion in cockroach with distinctive regions.

iv) Briefly explain phylum echinodermates. OR

Differentiate between:

a) Carinitae and Ratitae b) Bony fish and cartilaginous fish

v) Name different mouth parts of insects with example.

vi) Elaborate the factors necessary for proper functioning of enzymes. OR

Differentiate between:

a) Triploblastic and Diploblastic

b) Open type and Closed type Circulatory Systems.

vii) Elaborate polymorphism and their advantages. OR

State the cause and symptoms of Lung Cancer or Emphysema.


NOTE: Answer any TWO questions from this section. All questions carry equal marks.

Q.4 Write the salient features of phylum Annelida, the name its classes, characteristics and

examples.

OR

Write the characteristics of Mollusca with classes and examples.

Q.5 Write about the structure of human heart and how heart beat is initiated with a neat and

labelled diagram.

Q.6 Write in detail about human respiratory system and inhalations and exhalations with

relative diagram.

Q.7 Describe assimilation and elaborate digestive system in humans with example.

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