KENDRIYA VIDYALAYA No. 2, Delhi Cantt. AUTUMN ...kv2delhicantt.org/images/hw/shift2/12.pdfKENDRIYA...

KENDRIYA VIDYALAYA No. 2, Delhi Cantt.–10

AUTUMN BREAK: 2013-14 SHIFT 2 - HOLIDAYS HOMEWORK

Class: XII Subject : ENGLISH 1. English club SHS Kolkata has organized its Annual Inter-School Extempore. You are Mr.

Sahil Choudhry, Chief Editor „Times Daily‟ and you have been invited to be one of the judges for

the event. Write to the Director of the English Club expressing your inability to be the judge for

the occasion. (50-80 words)

2. A.K International School is looking for a receptionist for the school. Write an advertisement

on behalf of the administrative officer in the classified columns of the local newspaper giving

necessary details. Draft the advertisement in not more than 50 words.

3. Suman/Suresh has cleared the Pre-Medical Pre-Dental entrance examination. The family is

elated at the achievement and they decide to have a get-together for all friends. Draft an

informal invitation for the get-together.

4. On the occasion of world Heritage Day design a poster highlighting the need

to preserve the monuments of our country. You are Aman/ Amina the President of the Social

Science club. (50 words)

5. You are Nitin/Natasha a student of Class XII at K.P.N. Public School Faridabad. The student

is required to cope with a lot of peer pressure in today‟s competitive environment. Write a letter

to the editor of a national daily highlighting the kind of pressures an adolescent faces and

suggest ways to cope with the same.

.6. Computer games and video games have become popular with

children today.

As a result outdoor games seem to have no place in their life anymore.

You are

Mukesh/ Meena. You decide to write a speech to be delivered in the

school on

assembly on your experiences about the joys of playing outdoor games

in about 150- 200 words.

7. Wedding instead of being a simple and beautiful occasion is fast

turning into a hugely expensive affair. A large number of guests, lavishly

decorated pandals, variety of food, five star hotels or farm houses all

indicate one‟s status. Write a letter to the editor of a national daily

making a plea for simple and inexpensive weddings. You are Adesh of

15Aram bagh Delhi.



8. Teenagers today are getting hooked on to the latest gadgets. Write an article on

‘The advantages of technology versus its adverse effects’. „You are Rajesh

/ Shalini‟ Use the input given below: (200words)

Gadgets : mobiles, i-pods, computers, i-pads ,Greater affluence : easy availability ,Impact on

health : sedentary lifestyle, obesity, eating habits; Impact on academic performance , Social

impact : absence of social interaction ,Improved communication : global vision, easy

connectivity, faster information exchange.

9.You participated in a Career counseling program organized by Careers

India. You had the opportunity of listening to professionals from various fields

like food technology, fashion technology, Media management etc. Write a

report of the programme for Career Times. You are Alok/Anita.

10.You saw the following advertisement in the Times of India. You think you

are eligible to apply for the post mentioned. Write an application in response

to the advertisement. Applications are invited by Sundaram Business Services

a division of Sundaram Finance Limited. For the post of HEAD-HR, a middle

management position, reporting to the Head of the Division, in Chennai.

Applicant should be around 35 years of age with postgraduate qualification in

HR from a reputed institution should have minimum five years experience in

HR functions. Should be. conversant with the best HR practices in the industry

and should have implemented robust performance monitoring /appraisal

system and productivity linked incentive schemes.

Apply with full particulars and the emoluments expected, within a week to

chief HR Manager, Sundaram Business Services, No. 05, Shanti Colony,

Anna Nagar Chennai – 04.

11. Attempt 8 literature sample papers 12. Read the novel, make summary of all the 15 chapters.

technology, fashion technology, Media management etc. Write a report of the programme for Career Times. You are Alok/Anita.



Subject : HINDI

Subject : HISTORY



Subject : GEOGRAPHY (1 of 2)



Subject : GEOGRAPHY (2 of 2)

Subject : ECONOMICS



Subject : CHEMISTRY 1. All the name reaction in textbook of class 12 chemistry ,write and remember completely.

2. All the reaction mechanism in the textbook of class 12,in organic chemistry chapter ,write and

understand.

3. All the conversion given in the textbook of the 4 chapters in organic chemistry solve in

homework copy.

4. Complete all the ncert question of “chemistry in everyday life” in homework copy.

5. Complete the investigatory project and practical notebook of session 2013-14.

Subject : PHYSICS Complete Physics project for CBSE Exam.

ELECTROSTATICS

1. What is the angle between the directions of electric field at any (i) axial point and (ii)

equatorial point due to an electric dipole?

2. The graph shown here, shows the variation of the total energy (E) stored in a capacitor

against the value of the Capacitance(C) itself. Which of the two - the charge on the capacitor or

the potential used to charge it is kept constant for this graph?

3. Why is Van.deGraff generator enclosed in a steel tank filled with air?

4. Draw lines of force to represent a uniform electric field.

5. Sketch the lines of force due to (a) q> 0 (b) q< 0.

6. In a medium the force of attraction between two point charges, distanced apart, is F. What

distance apart should they be kept in the same medium so that the force between them

becomes (1) 3F (2) F/3?

7. A charge q is placed at each corner of a square of side a. What is the electric field at the

centre of the square?

8. What are the orientations of electric dipole in uniform electric field in stable and unstable

equilibrium?

9. The water particle of mass 10.0 mg and having a charge of 1.50 × 10–6 C stays suspended in

a room. Find the field

10. Is there any electric field intensity inside a charged conductor?



11. There are five balls 1, 2, 3, 4 and 5. Ball, (1, 2), (3, 4) and (2, 5) attract each other whereas

(1, 4) and (3, 5) show repulsion. What is the charge on ball 2?

12. Charges reside only on the outer surface of a charged conductor. Why?

13. If the dielectric constant of a medium is unity, what is its permittivity?

14. Define electric dipole moment.

15. Give mathematical expression for Gauss‟s theorem.

CURRENT ELETRICTY

1. Electric current has a direction. Is it a vector quantity?

2. A steady current is flowing ma cylindrical conductor. Is there any electric field within the conductor?

3. A one metre long wire of resistance R is bent at 180° in the middle and the two halves are twisted

together. What will be the effect on resistance?

4. Why does resistance become less in parallel combination?

5. How does the resistivity of alloy manganin, and a conductor change with temperature? Show

graphically

6. How does the resistivity of semiconductors change with temperature?

7. Why does resistance become more in series combination?

8. Under what condition is the parallel combination of cells useful?

9. A 100 W and a 500 W bulb are joined in series and connected to the mains. Name the bulb glowing

brighter.

10. State the condition in which terminal voltage across a secondary cell is equal to its e.m.f

11. What is the effect of heating of a conductor on the drift velocity of free electrons?

12. How does the drift velocity of electrons in a metallic conductor change, if the length of the conductor

Is doubled by stretching it, keeping the applied potential difference constant?

13. Two wires of equal length, one of copper and the other of manganin, have the same resistance.

Which wire is thicker?

14. A wire of resistivity p is stretched to three times its length. What will be its new resistivity?

15. Draw a graph to show the variation of resistance of a metal wire as a function of its diameter,

Keeping length and temperature constant;

16. If no field is applied across the ends of a conductor are electron in motion?

17. Is current density a vector quantity?



18. A student obtains resistances of 3, 4, 12 and 16 ohms using only two metallic resistances wires

either

Separately or joined together. What is the value of resistance of each of these wires

19. What will be the change in the resistance of a Eureka wire, when its radius is halved and length is

Reduced to one-fourth of its original length?

20. What is mobility and how it is related with current?

Subject : COMPUTERS Q1. a) Differentiate between primary key & candidate key with suitable example?

b) Consider the following tables PRODUCT & CLIENT. Write SQL commands for the statement (i) to (iv)

and give outputs for SQL queries (v) to (viii)

Table : PRODUCT

PID Pname Manufcturer Price

HP01 Complan HLL 195

FW01 Face Wash Himalaya 65

BS01 Bar Soap Fena 12

CC01 Cold Cream Ponds 55

HL01 Horlicks TDH 215

Table CLIENT

CID Cname City PID

56 Gopal & Sons Varanasi FW01

48 Paradise For You Delhi BS01

14 Beauty Collection Lucknow CC01

18 Dreamz Varanasi HL01

10 Dhanuka Stores Kolkata HP01

i) to display the details of the clients of Varanasi & Kolkata in descending order of Cname. ii) to display all the products whose price ranges between Rs. 1-100.

iii) to display Pname, Price, Cname, City from tables PRODUCT & CLIENT. iv) to decrease the price of all products produced by Ponds by 15%. v) Give the output of the following SQL commands :



a) SELECT COUNT(Distinct City) FROM CLIENT; b) SELECT Manufacturer, Max(Price), SUM(Price) FROM PRODUCT Group By Manufacturer; c) SELECT Pname,Price*12 FROM PRODUCT; d) SELECT Cname, Manufacturer FROM PRODUCT P,CLIENT C WHERE C.PID=P.PID;

Q2. (a) What do you understand by the define degree and cardinality of a table?

(b) Consider the following tables Item and Customer. Write SQL commands for

statements (i) to (iv) and give outputs for SQL queries (v) to (viii).

TABLE: ITEM

I_ID ItemName Manufacturer Price

PC01 Personal Computer ABC 35000

LC05 Laptop ABC 55000

PC03 Personal Computer XYZ 32000

PC06 Personal Computer COMP 37000

LC03 Laptop PQR 57000

TABLE : CUSTOMER

C_ID CustomerName City I_ID

01 N Roy Delhi LC03

06 H Singh Mumbai PC03

12 R Pandey Delhi PC06

15 C Sharma Delhi LC03

16 K Agarwal Bangalore PC01

(i) To display the details of those Customers whose City is Delhi

(ii) To display the details of Items whose Price is in the range of 35000 to

55000(Both values included)

(iii) To display the CustomerNarne, City from table Customer and ItemName and

Price From table Item, with their corresponding matching I_Id

(iv) To display all the contents in the table Item in the descending order of the

ItemName.

(v) SELECT DISTINCT City FROM Customer;



(vi) SELECT ItemName, MAX(Price), Count(*)FROM Item GROUP BY ItemName;

(vii) SELECT CustomerName, Manufacturer FROM Item, Customer

WHERE Item.Item_Id=Customer.ItemI_Id;

(viii) SELECT ItemName, Price * 100 FROM Item WHERE Manufacturer='ABC';

Q3. Generate printouts of coding and outputs for the final problems given in Assignment link for Class XII on

website.

Subject : INFORMATION PRACTICES Generate print outs of coding and design and run time forms for the following problems

1. Design a java GUI application that accepts the marks in three subjects and calculates and display the percentage of student and also display the grade of student according to condition given below

Percentage grade >=85% A >=60% and < 85% B <60% C 2. Design a GUI application that input the basic salary of employee and calculate and display DA & HRA

according to given table and also display the gross. Salary = basic +DA +HRA. Basic DA HRA >40000 30% 28% <40000 and >30000 25% 23% <=30000 20% 21%

3. Design a GUI application that accepts the shopping amount from the customer and calculate the discount amount display it in label and also display the amount after deducting the discount amount . Discount is calculated from the given condition. Shopping amount Discount >50000 35% <50000 and >=20000 25% <20000 10%

4. Design a GUI application that input the gross salary of person. Net Salary = gross salary – tax. Tax is calculated as Gross Salary Tax >=80000 15% <80000 and >=50000 10% <50000 NIL

5. WAP that input a number and display the reverse of a number in a label, and check that the number is palindrome or not.

6. WAP that input a number in a text field and display all even number from 1 to n in a label. 7. WAP using function to accept a number as a argument and return the factorial of the number and display

the factorial in a label. 8. WAP to input a number in the text field and find the sum of the digits of a number. 9. WAP to generate the Fibonacci series upto n number

0 1 1 2 …. N 10. WAP to input a number 1-10 from the user and display it in words.



11. WAP to input the number n and find the sum of all the prime numbers between 1 to n 12. Write a GUI application to input following data items

Plancode, place, number_of_travellers

A function newplan( ) to assign the number_of_buses as per the following conditions:

number_of_travellers number_of_buses

less than 20 2

equal to and more than 20 and less than 40 3

equal to and more than 40 4

Display the contents of all the data members on the screen.

13. Write a GUI Define a class Bank to represent the bank account of a customer with the following

specification

Private Members:

- Name of type character array(string)

- Account_no of type long

- Type_of_account ( S for Saving Account, C for current Account) of type char

- Balance of type float

Public Members:

A constructor to initialize data members as follows

- Name NULL

- Account_no 100001

- Type_of_account ‘S’

- Balance 1000

A function NewAccount() to input the values of the data members Name, Account_no,

Type_of_account and Balance with following two conditions

Minimum Balance for Current account is Rs.3000

Minimum Balance for Saving account is Rs.1000



A function Deposit() to deposit money and update the Balance amount.

A function Withdrawal() to withdraw money. Money can be withdrawn if minimum

balance is as >=1000 for Saving account and >=3000 for Current account.

A function Display() which displays the contents of all the data members for a account.

Write sql commands for following tables:

Q1. Consider the following tables EMPLOYEE and DESIG. write SQL commands

for the statements (i) to (v).

EMPLOYEE

W_ID(int(4))

Primary Key FIRSTNAME(vachar(20)) LASTNAME(varchar(20)) CITY (varchar(20))

DESIG

(i) D

isplay

FirstNa

me and City of Employee having salary between 50,000 and 90,000

(ii) Display details of Employees who are from “PARIS” city.

(iii) Increase the benefits by 500 whose w_id is 210.

(iv) Count number of employees whose name starts from character „S‟.

(v) Display max. salary for clerks.

2..Consider the following tables Item and Customer. Write SQL commands for the statements (i) to

TABLE: ITEM

I_ID (varchar(5))

Primary Key

ItemName (varchar(20)) Manufacturer

(varchar(10))

Price(int(4))

TABLE : CUSTOMER

C_ID(int(4))

Primary

CustomerName(varchar(20)) City(varchar(20)) I_Id(varchar(5))

W_ID int(4)

Primary Key

SALARY (int(4)) BENEFITS (int(4)) DESIGNATION(varchar(20))



Key

(i) To display the details of those Customers whose City is Delhi.

(ii) To display the details of Items whose Price is in the range of 35000 to 55000 (Both values included).

(iii) To display the CustomerNarne, City from table Customer and ItemName and Price from table Item, with

their corresponding matching I_Id.

(iv) To increase the Price of all Items by 1000 in the table Item.

(v) Display no. of cities from table customer.

Q:3 Consider the tables FLIGHTS & FARES. Write SQL commands for the statements (i) to (v)

Table : FLIGHTS

FNO(varchar(10))

Primary Key

SOURCE(varchar(20)) DEST(varchar(20)) NO_OF_FL(int(2) NO_OF_STOP(int(2))

Table : FARES

FNO(varchar(10))

Primary Key

AIRLINES(varchar(10)) FARE(int(4)) TAX(int(2))

i) Display flight number & number of flights from Mumbai from the table flights.

ii) Arrange the contents of the table flights in the descending order of destination.

iii) Increase the tax by 2% for the flights starting from Delhi.

iv) Display the flight number and fare to be paid for the flights from Mumbai to Kochi using the tables, Flights

& Fares, where the fare to be paid =fare+fare*tax/100.

v) Display no. of sources present in FLIGHT table.

Q:4 Consider the following tables FACULTY and COURSES. Write SQL commands for the statements (i) to (v).

FACULTY

F_ID Fname Lname Hire_date Salary

102 Amit Mishra 12-10-1998 12000

103 Nitin Vyas 24-12-1994 8000

104 Rakshit Soni 18-5-2001 14000



COURSES

C_ID F_ID Cname Fees

C21 102 Grid Computing 40000

C22 106 System Design 16000

C23 104 Computer Security 8000

(i) To display details of those Faculties whose date of joining is before 31-12-2001.

(ii) To display the details of courses whose fees is in the range of 15000 to 50000

(both values included).

(iii) To increase the fees of System Design course by 500.

(iv) To display F_ID, Fname, Cname of those faculties who charged more than15000 as fees.

(v) Display different coursesname from courses.

Q:5 Write SQL commands for and write the outputs of SQL commands with the help of above shown table.

Table : SUPPLIER

Numbers Name City Itemno SuppliedQty Rate

S001 Puneet Delhi 1008 100 40

S002 Pradeep Bangalore 1009 200 30

S003 Tanmay Delhi 1008 150 40

S004 Rohini Bombay 1005 190 20

S005 Tanya Bombay 1003 20 50

S006 Aditi Madras 1008 180 40

S007 Kush Delhi 1009 300 30

(b) Display names of suppliers whose names start with the letter ‘T’. (c) Display details of suppliers residing in Delhi. (d) Display supplier name, item numbers, and supplied quantity for quantity > 150. (e) Create a view with one of the columns as rate * 10.



(f) List the suppliers name in the descending order of supplied quantity. (g) List the different cities contained in supplier table.

Subject : ACCOUNTANCY

Subject : BUSINESS STUDIES Learn the Question / Answers of Chapters – 1 to 8 from Test.

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