Post on 16-Oct-2021
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Holiday Homework
Class:-XII
English Physics Chemistry Biology
Maths Accountancy Economics Business Studies
Geography Political Science Informatics Practices
EP
Physical Edu. Music Fine Arts
Subject:-English Core
1. ARTICLE WRITING – ‘Migrant workers fled India’s cities in masse. Last year Prime Minister
Shri Narendra Modi’s announcement of lockdown left them suddenly unemployed’.
“ This Unfamiliar hardship faced by migrant workers since the outbreak of COVID – 19 might
result in fear mania”. Write an Article with regards to the topic. (paste relevant pictures
also).
2. POSTER MAKING – Not all heroes wear capes. In the midst of the novel coronavirus
pandemic, the real heroes wear scrubs. Prepare a Poster on ‘ Doctors as Angles in times of
Tensity’ expressing much needed respect & support for these front line warriors.
3. READING -
# Read lesson 1. The portrait of a Lady 2. We aren't afraid to die… ( Hornbill) and Lesson 1.
The Summer of the Beautiful White Horse , Lesson 2 The Address ( Snapshots)
# Write gist of the above lesson and also write your analysis of the characters present in
these stories.
4. NARRATION - Draw a comic strip of the narrator’s family (We’re not afraid to die….) on A4
Sheet and write their reactions & conversation (in the form of comic book) on reaching Ile
Amsterdam Island.
Note: Compile your written / typed tasks in one file/ PPT. Mention your name, class, section
and roll no.
Revise your UT 1 syllabus and complete all your written work
PHYSICS
1. Solve the equation 06136 2 xx
2. Find dx
dy for the following functions:
(a) 1025 xxy
(b) x
xxy1
(c) xxxy 635 2/35
(d) 3673 2 xxy
(e) 2
12
x
xy
3. Integrate the following with respect to 𝑥
(a) 3 5x
(b) x
x1
(c) 30
03sin xdx
(d) dxx
Gmm
r
2
Gmm = constant
4. In van der Wall’s gas equation [𝑃 +𝑎
𝑉2] [𝑉 − 𝑏] = 𝑅𝑇. Determine the dimensions
of a and b.
5. Fill in the blanks
(a) The volume of a cube of side 1 cm is equal to.....m3
(b) The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm is equal
to ... (mm)2
(c) A vehicle moving with a speed of 18 km h–1covers....m in 1 s
(d) The relative density of lead is 11.3. Its density is ....g cm–3or . ...kg m–3.
6. A book with many printing errors contains four different formulas for the displacement
y of a particle undergoing a certain periodic motion:
(a)
(b) y = a sin vt
(c)
(d)
(a = maximum displacement of the particle, v = speed of the particle. T = time-period of
motion). Rule out the wrong formulas on dimensional grounds.
CHEMISTRY
1 Which of the following conclusions could not be derived from Rutherford’s α -particle
scattering experiement? (i) Most of the space in the atom is empty. (ii) The radius of the atom
is about 10–10 m while that of nucleus is 10–15 m. (iii) Electrons move in a circular path of
fixed energy called orbits. (iv) Electrons and the nucleus are held together by electrostatic
forces of attraction.
2 Which of the following statement is not correct about the characteristics of cathode rays? (i)
They start from the cathode and move towards the anode. (ii) They travel in straight line in
the absence of an external electrical or magnetic field. (iii) Characteristics of cathode rays do
not depend upon the material of electrodes in cathode ray tube. (iv) Characteristics of cathode
rays depend upon the nature of gas present in the cathode ray tube
3 Which of the following statements about the electron is incorrect? (i) It is a negatively
charged particle. (ii) The mass of electron is equal to the mass of neutron. (iii) It is a basic
constituent of all atoms. (iv) It is a constituent of cathode rays.
4 Which of the following properties of atom could be explained correctly by Thomson Model
of atom? (i) Overall neutrality of atom. (ii) Spectra of hydrogen atom. (iii) Position of
electrons, protons and neutrons in atom. (iv) Stability of atom.
5 Two atoms are said to be isobars if. (i) they have same atomic number but different mass
number. (ii) they have same number of electrons but different number of neutrons. (iii) they
have same number of neutrons but different number of electrons. (iv) sum of the number of
protons and neutrons is same but the number of protons is different.
6 The Balmer series in the hydrogen spectrum corresponds to the transition from 1 n = 2 to 2
n = 3,4,.......... This series lies in the visible region. Calculate the wave number of line
associated with the transition in Balmer series when the electron moves to n = 4 orbit.
7 What is photoelectric effect? State the result of photoelectric effect experiment that could
not be explained on the basis of laws of classical physics. Explain this effect on the basis of
quantum theory of electromagnetic radiations.
8 Why was a change in the Bohr Model of atom required? Due to which important
development (s), concept of movement of an electron in an orbit was replaced by, the concept
of probability of finding electron in an orbital? What is the name given to the changed model
of atom?
9 Define the law of multiple proportions. Explain it with two examples. How does this law
point to the existance of atoms?
10 What is the difference between molality and molarity?
11 What is the symbol for SI unit of mole? How is the mole defined?
12 What will be the mass of one atom of C-12 in grams?
In the following questions two or more options may be correct.
13 Which of the following terms are unitless? (i) Molality (ii) Molarity (iii) Mole fraction (iv)
Mass percent
14 16 g of oxygen has same number of molecules as in (i) 16 g of CO (ii) 28 g of N2 (iii) 14
g of N2 (iv) 1.0 g of H2
15 Which of the following pairs have the same number of atoms? (i) 16 g of O2(g) and 4 g of
H2(g) (ii) 16 g of O2 and 44 g of CO2 (iii) 28 g of N2 and 32 g of O2 (iv) 12 g of C(s) and 23
g of Na(s)
16 Calculate the mass percent of calcium, phosphorus and oxygen in calcium phosphate
Ca3(PO4) 2.
In the following questions a statement of Assertion (A) followed by a statement of
Reason (R) is given. Choose the correct option out of the choices given below each
question
17 Assertion (A) : The empirical mass of ethene is half of its molecular mass.
Reason (R) : The empirical formula represents the simplest whole number ratio of various
atoms present in a compound. (i) Both A and R are true and R is the correct explanation of A.
(ii) A is true but R is false. (iii) A is false but R is true. (iv) Both A and R are false.
18 Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-
12 atom.
Reason (R) : Carbon-12 isotope is the most abundunt isotope of carbon and has been chosen
as standard. (i) Both A and R are true and R is the correct explanation of A. (ii) Both A and R
are true but R is not the correct explanation of A. (iii) A is true but R is false. (iv) Both A and
R are false.
19 . Assertion (A) : All isotopes of a given element show the same type of chemical
behaviour. Reason (R) : The chemical properties of an atom are controlled by the number of
electrons in the atom.
(i) Both A and R are true and R is the correct explanation of A. (ii) Both A and R are true but
R is not the correct explanation of A. (iii) A is true but R is false. (iv) Both A and R are false.
20 Assertion (A) : Black body is an ideal body that emits and absorbs radiations of all
frequencies.
Reason (R) : The frequency of radiation emitted by a body goes from a lower frequency to
higher frequency with an increase in temperature. (i) Both A and R are true and R is the
correct explanation of A. (ii) Both A and R are true but R is not the explanation of A. (iii) A
is true and R is false. (iv) Both A and R are false.
Biology
Q1 Define the following terms:
1 Phylum 2 Class 3 Family
Q2 Explain taxonomic hierarchy with suitable examples of a plant and an
animal.
Q3 What are zoological parks? What is the scientific purpose of them?
Q4 Write a short noteonArchaebacteria.
Q5 Give 6 chactersticts of phylum protozoa.
Q6 Give 4 characterstics of phylum dinoflagellata.
Q7 Explain reproduction in fungi.
Q8 What are lichen.
Q9 With the help of 4 characterstics compare the 4 classes of kingdom fungi.
Q10 What are zooplanktons?
Maths Chapter 1st (sets)- Exercise- 1.3 Q.no- 3,4,6,7 Exercise-1.4 Q.no.- 6 and 9. Exercise 1.5 Q.no- 4 and 5 Exercise- 1.6 Q.no.- 7 Miscellaneous- Q.no- 2,5,9 and 13 to 16. Chapter 12 (Three dimensional) Exercise 12.2 Q.no- 4 and 5 Exercise 12.3 Q.no- 2 and 3 Miscellaneous- Q.no- 4 to 6.
Business Studies
1. Make mind maps of –
(i) Nature and Purpose of Business
(ii) Forms of Business Organizations
2. Students are supposed to select one unit out of two and are required to
make only ONE project from the selected unit.
I. Project One: Case Study on a Product
Take a product having seasonal growth and regular demand –
For example,
Apples from Himachal Pradesh /Kashmir.
Oranges from Nagpur,
Mangoes from Maharashtra/U.P./Bihar/Andhra Pradesh etc.
Strawberries from Panchgani,
Aloe vera from Rajasthan,
Walnuts/almonds from Kashmir,
Jackfruit from South,
Guavas from Allahabad,
Pineapples from North East India,
Tea from Assam,
Orchids from Sikkim and Meghalaya,
Pottery of Manipur,
Fishes from coastal areas.
Students may develop a Case Study on the following lines:
(i) Research for change in price of the product. For example, apples in
Himachal Pradesh during plucking and non plucking season.
(ii) Effect on prices in the absence of effective transport system.
(iii) Effect on prices in the absence of suitable warehouse facilities.
(iv) Duties performed by the warehouses.
(v) Demand and supply situation of the product during harvesting season,
prices near the place of origin and away.
OR II. Project Two: Aids to Trade Taking any one AID TO TRADE, for
example Insurance, Warehousing, Communication, Banking,
Transportation etc.
Presentation of Project Report- The project report file of business studies
should be drafted in the following sequence by covering every detail-
The cover page should include the title of the Project, student information,
school, and year.
List of contents –
Project Must Have 20-25 Pages
The project should be Handwritten
Acknowledgments and preface (acknowledging the institution, the places
visited and the persons who have helped).
Introduction.
Topic with a suitable heading.
Planning and activities are done during the project if any.
Observations and findings of the visit.
Photographs (if any). Conclusions (summarized suggestions or findings,
the future scope of the study).
Appendix, bibliography
IT SHOULD BE AN INDEPENDENT AND SELF-DIRECTED PIECE OF
WORK.
Recommended Books (For Case Studies) –
Business Studies – Subhash Dey
Business Studies – Poonam Gandhi
Accountancy Prepare a Project file on Collection of source documents, preparation of vouchers, recording
of transactions with the help of vouchers.
2. Chap: 6 Accounting Equations: Do questions 22 to 29 ( Additional Questions)
Chap: 9 Journal – Do Questions 26 to 37. Economics The students are required to do a comprehensive study on any Economics
topic and do it in a project file. The size of the file should be A4.
The objectives of the project work are to enable learners to:
Probe deeper into theoretical concepts learnt in classes XI
Analyse and evaluate real world economic scenarios using theoretical
constructs and arguments
Demonstrate the learning of economic theory
Follow up aspects of economics in which learners have interest
Develop the communication skills to argue logically
The expectations of the project work are that:
Prepare in the form of PPT
It will be an independent, self-directed piece of study
Expected Checklist:
Introduction of topic/title
Identifying the causes, consequences and/or remedies
Various stakeholders and effect on each of them
Advantages and disadvantages of situations or issues identified
Short-term and long-term implications of economic strategies suggested
in the course of research
Validity, reliability, appropriateness and relevance of data used for
research work and for presentation in the project file
Presentation and writing that is succinct and coherent in project file
Citation of the materials referred to, in the file in footnotes, resources
section, bibliography etc.
Prepare a project on the basis of the suggestive lists:
Political Science
Make a project file on any one of the topics mentioned below
1. Indian Constitution
2. Indian Constitution as a Living Document
3. Philosophy of Indian Constitution
4. Political Theory
5. Liberty
6. Social Justice
7. Rights
8. Equality
9. Election and Representation
10. The Executive
Geography NOTE: Do all the work in separate file.
Map practice – (paste/draw) 1. INDIAN MAP PRACTICE
a) Highest rainfall area
b) Lowest rainfall area
c) Dras (lowest temperature area)
d) Place having highest temperature
e) Direction of south west monsoon
f) Direction of north east monsoon
g) Major Indian rivers
h) Plateus of India
i) Indian mountain
j) Thar desert
k) Physical division of India
l) Tropic of cancer
m) Indian standard meridian
n) Indian states and capitals
2. WORLD MAP
a) Important plates b)Ring of fire
3.ART INTEGRATED PROJECT (COMPULSORY )
a) Braches of geography based on region approach (pg.9)
b) Earth waves (pg. 23)
c) Earthquake shadow zone (pg.24)
d) Interior of earth (pg.26)
Collect information of any 3 geographical events occurred on the globe. Make a collage by using
pictures on chart.
Q4 Make a working model on any one of the following- Earthquake ,river system ,waterfall. etc
Q5. Draw a chart to show ( any 3)
a) Longitude and Latitudes b) Drainage pattern
c) Aneroid barometer d) Weather map
e) Rain gauge f) Wind wane
visit on following websites and links
https://www.learncbse.in Google Mapshttps://www.google.co.in › https://www.geography.org.uk/Full-list-of-project-ideas Use Atlas and Geography encyclopedia
Informatics Practices 1. Design a presentation on Computer Overview (Ch-1). Cover all the topics related to the chapter. 2. Write the features of Python. 3. Briefly explain some advantages and disadvantages of Python. 4. Write the brief introduction to Python.
Entrepreneurship
1. Select an entrepreneur in your vicinity and conduct an interview about his
overall journey as an entrepreneur. Prepare a report. The chosen
entrepreneur should be easily accessible, i.e., local entrepreneurs to be
approached.
OR
2. Pick an enterprise and find the growth history of the enterprise. Analyse the
various factors that contributed to the overall growth of the enterprise.
Prepare a report.
NOTE - The project report file of Entrepreneurship should be drafted in the
following sequence by covering every detail-
The cover page should include the title of the Project, student information,
school, and year.
List of contents –
Project Must Have 15-20 Pages
The project should be handwritten.
Acknowledgments and preface (acknowledging the institution, the places
visited and the persons who have helped).
Introduction.
Topic with a suitable heading.
Planning and activities are done during the project if any.
Physical Education Complete:
ch. 1st changing trends and career in physical education.
ch.2nd. Olympic value education.
Music Make a practical file of all definitions ,Talas, Life sketches, music elements ,knowledge of tanpura ,description and notations of raagas .
Fine Arts (painting and commercial art) all compositions ,posters and illustration topic given in class should be completed