Download - Kendriya Vidyalaya No.1 Sagar

KENDRIYA VIDYALAYA No1 SAGAR SESSION 2017-18
Holiday Home Work Summer Vacation Class VI to X
Class VI
कक्षा छठवी (Hindi)
प्रश्न-१ चिचिया से संबचित पां ि कचवताये ेँ संग्रचित कर चित्र सचित स्क्रैप बुक में चिखिए|
प्रश्न २ तीन चिन की छु ट्टी के चिए आवेिन पत्र चििो |
Class- VI Subject- English
1. Write an application for a week leave to the principal of your school as you are unable to attend school because of viral fever.
2. Write a paragraph on (i) My Mother (ii) My pet Dog (iii) My Self
3. You found a tiffin box in the playground. Write a notice on the noticeboard asking the owner to collect from you.
4. Write the following definition with example of each:Noun
Verb
Pronoun
Adjective
Adverb
Activity 1- Paste a copy of the picture no. 19 of H. Suckle and write at least 10 sentences about it.
Activity 2 – Paste a copy of Page no. 23. of H. Suckle and find out 12 ridden words from it.
Activity 3- Write at least 20 Singular and Plural nouns like Boy- Boys.
Activity 4- Write at 20 verbs from Lesson-1 and their 3 forms like go-went-gone.
Activity 5- Do the exercise no. A & B of page no. 22 of H. Suckle .
Note. Complete this work in Scrap book copy
Class VI Subject- Sanskrit
ist ua- 88&92 rd fyf[k, ¼’kCn:ikf.k]/kkrq:ikf.k] dkjd%]foHkfDr ifjp;a½
Class- VI A Subject- Science
1. Learn and write the different following terms:(a) Ingredients
(b) Echelle Parts
(c)Nectors
(d) Herbivores
(e) Carnivores
(f) Omnivores (g) Sprouted seeds
2. Learn the ques-ans given in the chapter and all the exercise. Read chapter carefully.
Do an Activity 1- Make a list (With pictures when possibile) of food items generally taken by people of different regions of
Indian. (Activity 2.1) (Page no. 8)
Activity -2 Make a list and paste the picture with the suitable examp-le of different nutrients prevent in different food items
and their sources. Like Protein, fats, carbohydrates, vitamins and minrals.
Q3. Try to find out the meaning of following:(a) Nutrients (b) Balance diet (c) Qlusity (d) deficiency diseases
Q4. Draw a table 2.3 in your copy (page no. 16)
Class- VI( B+C) Subject- Science
1. Make a file of different component of food.
(a) Major component of Food. (b) Sources of components of food. (c) Deficiency diseases of our body
2. Learn 1, 2, 3 Chap. question-Answer,Keywords internal ques-ans.
3. Make a chart of balance diet for 2nd years old boy and girls.
CLASS- VI SUBJECT- MATHEMATICS
1. Write the number names according to Indian system of numeration (a) 87592671 (b) 9546932
2. Estimate 8,674- 548
3. Estimate the following products using general rule (a) 568x165 (b) 4856x191
4. Write in Roman numerals (a) 73 (b) 92
5. Find 12x35 using distributive.
6. Find the value of the following (a) 54279x92+8x54279 (b) 297x17+297x3
7. Find the factors of 36.
8. Using divisibility tests, determine which of the following numbers are divisible by 2 &5.
(a) 10824 (b) 7138965 (c) 70169308
9. Fine the prime factorization of 980.
10. Write the greatest 4- digits number and express it in terms of its prime factors.
ACTIVITY
1. Write the following numbers in roman numerals using match sticks:
1-20, 30, 40, 50, 60, 70, 80, 90, 100, 500, 1000.
2. Use any 5 digits from 0-9 and write all the 5 digit numbers that can be formed using the digits only once. Write the greatest
and the smallest 5 digit number from them.
3. To verify that addition is cumulative for whole numbers, by paper cutting and pasting.
PROJECT WORK
1. Find out and write the population of any 5 states in 2011. Write it in Indian system and International system of numeration.
Subject- Computer
Q1. Make 6 MCQ question on the topics Input Device, Output Device and Processing Device
Q2. Learn and write Input & Output Device.
Q3. Write short note on “Computer Generation”(100 Words)
Class VII
Class- VII( A + B) Subject- Science
1. Activity for photosynthesis on a plant.
2. Collect data from your friends neighbors and classmates to know about milk teeth.
3. Write about types of teeth present in human mouth and make diagram of teeth.
4. Make a labeled diagram of human digestive system and define all parts of digestive system.
Class- VII C Subject- Science
1. Define the terms
(a) Autotrophic Nutrition (b) Hetrotropic Nutrion (c) Chlorophyll (d)Photosynthesis
(e) Stomata
(f) Cell (g) Cytoplasm (h) Parasite (i) Insectivorous Plant (j) Saprotrophic Nutrition (k) Symbiotic relationship (l) Nutrients
2. Learn the que.-ans, fill in the blanks (All the exercise) of chapter Nutrition in plants .
3. Do an activity1 : Vist a green house if there is one near your place. Observe how they raise plants. Find out how they regulate
the amount of light, water and Carbon dioxide to grow the plants, and try to make a report on it.
Activity 2:- Visit a doctor and find out
(i)
Under what conditions does a patient need to be on a drip of glucose.
(ii)
Till when a patient needs to give glucose.
(iii)
How does glucose help the patient revover.
Class- VII Subject- S. St
1. What is Ecosystem?
2. Which are the major components of the environment?
3. What is Lithosphere?
4. What is called universal adult franchise?
5. When civil rights movement was began? What were demanding in this movement?
6. Who was considered a foreigner in the past?
7. What does the term pan-regional empire mean?
8. How does historians divide the history of India into three periods? What are the drawback of this division?
कक्षा सातव ीं ह ीं द
प्रश्न-१ पयाा वरण सरक्षण पर ३०० शब्ों में चनबंि चिखिए |
प्रश्न २-आपनी िािी/नानी पर कचवता उनके चित्र सचित चििो |
प्रश्न ३-संज्ञा,सवानाम चवशेषण समास की पररभाषा चििकर प्रत्ये क प्रकार के १०-१० उिािरण चििकर िाइए |
Class VII Subject- English
Activity 1- Write at least 20 singular &Plural like : Man – Men
Activity 2 – Write at least 20 verbs and its 3 forms from Ch. No. 1 of H.C.
Activity 3- Paste picture of pageno. 44 & 45 of H.C. to construct a story.
Activity 4- Write a paragraph on ants and their working style. (Paste Picture)
Activity 5- Do the exercise of page no. 15 H.C.
1. Write an application to the principal asking him/her to allow you to change your section.
2. Write a paragraph on:- (1) Game I like most. (2) Independence Day
3. Write a letter to your friend asking him/her to come to your place during summer vacation.
4. Write the definition and examples of Parts of speech.
Class VII Subject- Sanskrit
ist ua- 90&95 rd fyf[k,¼’kCn:ikf.k½
Class VII Subject- Mathematics
1. Explain the following properties for inegers(a) Closure Property (b) Communicative Property (c) Associative Property
2. Write the short note about the any Indian Mathematician.
3. Write ten multiple choice question related to first chapter.
4. Verify a – (-b) = a + b For (i) a = 21 , b =18 (ii) a=118, b= 125 (iii) a=75, b=84
5. Verify that a  (b + c)  (a  b) + (a  c) for a and b:- (i) a =12, b= -4 , c= 2
(ii) a = -10 , b = 1, c= 1
6. Explain the distributive property by activity method.
7. Evaluate (-18) X (-10) X (-9)
8. Find the product using suitable properties:(-41) X 102
9. Find the product:(-15) X 0 X (-18)
10. Class test will be held on opening day in the school.
Class VII Computer
Q1. Make 10 MCQ question on the topics Input Device, Output Device and Computer Security.
Q2. Make diagram of keyboard in your notebook.
Q3. Make a list of following:- (any five each)
(1) Virus
(2) Antivirus
Q4. Class test will be conducted after holidays
Class- VIII
कक्षा-आठवीं ह ींद
प्रश्न – वसंत ऋतू पर चित्र सचित पां ि कचवताओं का संकिन करो |
प्रश्न -संज्ञा,सवानाम चवशेषण समास की पररभाषा चििकर प्रत्ये क प्रकार के १०-१० उिािरण चििकर िाइए |
Class- VIII Subject- English
1. Write a paragraph on: (120-150 words)
(i) Child Labour
(ii) My School Library
2. Write a letter to your friend and tell him about your visit to a hill station during summer vacation.
3. Write a notice to interm the students about drawing competition which is going to be held during CCA period in your school.
Class- VIII Subject- Sanskrit
ist ua- 90&95 rd fyf[k,¼’kCn:ikf.k½
Class- VIII(A+B) Subject- Science
1. Define the terms with an example:(a) Microorganism (b) Fermentation (c) Vaccine (d) Antibiotics (e) Pathogens
(f) Communicative and Non-Communicative disease (g) Preservatives (h) Pasteurization
2. Learn the que.-ans, fill in the blanks (All the exercise) of chapter Microorganism: friends and foe; and read chapter carefully.
3. Do an activity : find out the different diseases caused by different Microorganism (like Bacteria, Viruses, Proton, Fungi and
algae), their causative agents.
Mode of transmission and their preventive measures (both plants and animals.)
Activity 2:- Collect the labels from jams and jellies. Write down the list of content printed on the labels.
Class- VIII Subject- Science(c)
1. Learn all question answer of Chap. 2,3,4.
2. Collect data for synthetic and natural fibers
3. Collect the root of lugrainious plant and describe nitrogen fixation and nitrogen cycle.
Class- VIII Sub: Maths
1. Find five rational numbers between a) 7 & 8 b) -12 & -13 c) ⅚ & ⅜ d) -⅖ & -⅞.
2. Verify the commutative, associative & distributive properties for addition & multiplication of rational numbers . Give two
examples for each taking the numbers of your choice.
3. a) Using properties solve:
a) (-⅓)X(⅜)+8/5-(⅜)X(⅟9)
b) (⅖) X (-4/9)+(⅟7) X (6/5)-⅟15 X ⅖
4. Solve the following equations for x:
a) 5x=(7/8)( 3x-4)
b) (7x-3)/4x=3/5.
C) 4x-(x-1)/5=(3x)/2+(5/4)
d) x+8-(5x-1)/4=(19/6)-(4x/3)
e) ( 7x-1)/3 +1=(x-3)/8.
5. a) The sum of the digits of a two digit number is 9. Also, nine times this numberis twice the number
obtained by reversing the order of the digits. Find the number.
b) Meena went to a bank to withdraw Rs. 2000. She asked the cashier to give her Rs. 50 & Rs. 100 notes only Meena got 25
notes in all. Find how many notes of Rs. 50 & Rs. 100 she received.
c) 10 students of class VIII took part in mathematics quiz. If the number of girls is 4 more than boys, find the number of boys
and girls who took part in the quiz.
d) Four consecutive integers add up to 26. What are the integers?
e) Half the perimeter of a rectangular garden, whose length is 4m. more than the breadth is 36m . Find the dimensions of the
garden.
ACTIVITIES:
1. Make a cross-word puzzle using the terms from the unit “Rational Numbers”(for example, additive inverse, commutative ,
multiplicative inverse etc.)
2. Verify that the sum of four angles of a quadrilateral is 360° by drawing any convex quadrilateral. Using glazed papers cut out
a pair of each angles. Paste one in the figure and arrange the other four to form 360°.
3. Verify that the sum of the exterior angles of any polygon is 360°.
Project:
Write the brief history of great mathematician Shri NIvas Ramanujan.
Class- VIII Subject- S.St
1. Learn and write the Preamble of Our Indian Constitution
2. What are called sustainable development?
3. Write the differences between Renewable and non-Renewable resources.
4. All objective Q/Ans. (MCQ) of chapter 1 from (Geo. Hist. Civics) .5. Explain fundamental rights
6. Why did the British preserve official document?
Class VIII Computer
Q1. Make 10 MCQ question on the topics Input Device, Output Device and programing.
Q2. Write short note on “Computer programing”.
Q3. Write use of various input and output device.
Q4. Class test will be conducted after holidays
Class- IX
कक्षा नवमी चिंिी
प्रश्न -१ प्रेमिंि की कोई एक (पशु पचक्षयों से सम्बंचित)किानी पढ़कर उसका नाट्य रूपां तरण कररए|
प्रश्न-२ अिंकार समास मुिावरे की पररभाषा प्रकार १० - १० उिािरन सचित चिखिए
Class- IX Subject- English
Note:- Do all the work of English Holiday Homework in Scrap Book Only.
1. Write down at least 10 literacy device with example.
2. Make a list of singular to plural.
3. Write a letter to the editor of any News Paper highlighting the problem if water and prepare uses of it during summer.
4. Paste a copy of page no. ……. of ……. And write at least 11 Sentence about it.
5. Construct a story and write moral of it. Paste picture if possible.
6. Write characters sketch of -1 Harris 2. Jerom K. Jerom 3. George
from the novel Three Men in a Boat.
Class- IX Subject- Physics
1. Revision of chapter- Motion
2. Definition of speed, velocity and Acceleration , Differentiate b/w distance and displacements and Speed and Velocity
3. Example of Ohm’s Law, Resistance of Wire.
4. Graphical representation of uniform and non-uniform motion and computing , velocity , distance and acceleration from their graphs.
5. Solving numerical problems on above formulae and graph.
Class- IX Subject- Biology
1. Describe the factors for which crop variety improvement is done.
2. Give examples of following group of crops:(a) Cereal Crops (b) Pulses (c) Oil seeds (d) Fodder Crops
3. Differentiate between:- (a) Manure and Fertilizers
(b) Macronutrients and Micronutrients
4. Write the answer of intext question given in the textbook, upto page no. 207.
5. Activity-Make a herbarium of cereals, pulses and oil seeds and identify the seasons of their sowing and harvesting.
Class- IX (A,C) Subject- Science
Q1. Define and learn the following terms:(a) Osmosis (b) diffusion (c) Hypertonic solution (d)Hypotonic Solution (e) Isotonic Solution (f) Cell Organism
Q2. Learn and write all the answer of intex question given in the chapter cell: fundamental unit of life.
Q3. Write all the answer of question given exercise at the end of the chapter.
Q4. Read the chapter carefully and bring your douts
Class- IX Subject- Mathematics
Q1. Define the following with examples:- (a) Rational Numbers
(b) Irrational Numbers
𝑝
Q2. Express 23.47
in the form of 𝑞
Q3. Express 0.34 - 0.2 + 0.6 in the form of
Q4. Represent √11
Q5. Represent √6.4
𝑝
𝑞
on the number line.
on the number line.
4
Q6. Express with rational denominator
√5 −1
Q7. Define the following with examples:(a) Polynomial
(b) Degree of polynomial (c) Constant polynomial
(d) Zero polynomial
Q8. Write the statement of (a) Factor Theorem (b) Remainder Theorem
Class- IX Subject- S.St
1. Describe the circumstances leading to the outbreak of revolutionary protest.
2. Which groups of French Society benefited from the revolution?
3. Describe the legacy of French revolution for the people of the world during the 19th and 20th Century.
4. Which freedom are usually taken away when a democracy is over throw by the military?
5. Prepare PPT on chapter. (Geo.)
6. Map Work:- In India’s map Show:Longitudes and Latitudes, tropic of cancer, Standard mardian, Neighboring Countries.
Class- IX-B Subject- Geo.
1. Complete and revise all question of Chapter No. 1- India : Size and location in Geography, as a revision work.
2. Study thoroughly Chapter No. 22. Physical features of India of Geography and complete all question in all respect of this chapter.
3. Make a plain copy containing 100 pages and draw/complete all Maps shown in all chapters of Geography. Also complete all
the map exercise of all chapters of Geography given in the last exercise questions social science of Saraswati Publication or
may be any other Publishers.
Class- IX Computer
Q1. Make any 15 MCQ on the following topics:Input Device, Output Device, Processing Device and Memory
Q2. Make a list of various computer language.
Q3. Learn and remember full form.
Q4. Class test will be conducted after holidays
Class- X
कक्षा िसवी चिंिी
प्रश्न १ रस की पररभाषा एवं प्रत्ये क प्रकार के ५-५ उिािरन चििकर िाइए
प्रश्न २ सूरिास के ५ अन्य पिों का संकिन करके िाइए
प्रश्न ३ िमारे जीवन में माेँ का क्या मित्त्व िोता िै माता का आं िि पाठ के आिार पर चिखिए (२०० शब् )
Class- X Subject- English
Note:- Do all the work of English Holiday Homework in Scrap Book Only.
1. Write down at least 10 literacy device with example.
2. Make a list of singular to plural.
3. Write a letter to the editor of any News Paper highlighting the problem if water and prepare uses of it during summer.
4. Paste a copy of page no. ……. of ……. And write at least 11 Sentence about it.
5. Construct a story and write moral of it. Paste picture if possible.
6. Write characters sketch of -1 Helen Keller 2. Anne Sullivan 3. Sir. Arthur Keller from the novel Story of My Life.
Class- X Subject- Physics
1. Revision of chapter- Electricity.
2. Definition of Currents its S.I UNIT, Ohm’s Law and its Graphical Representation.
3. Example of Ohm’s Law, Resistance of Wire.
4. Writing Work:(a) Write experiment of Ohm’s Law in practical notebook and complete it. (b) Write all experiment in practical notebook.
Class- X Subject- Biology
1. Draw the labelled diagrams:(a) Cross section of a Leaf showing cells with chloroplasts. (b) Stomata (opened and closed) (c) Human digestive system
2. Differentiate between:(a) Autotrophic Nutrition & Heterophic Nutrition. (b) Photosynthesis and Respiration.
3.Write Activities for Demonstrating:(a) Chlorophyll is necessary for Photosynthesis (b) Carbon dioxide is is necessary for Photosynthesis
(c) Light is necessary for Photosynthesis
Class—X Subject:-Maths
Solve the following problems
1) If the polynomials 4x4 + 2x3 -2x2 + x -1 is divided by another polynomial x2 +2x-3 remainder comes out be ax + b than
the value of a and b are.
2) What must be added to the polynomial f(x) = x4 + 2x3 – 2x2 + x -1 so that the resulting polynomial is exactly divisible by
x2+ 2x – 3?
3) Find the largest number which divides 615 and 963 leaving remainder 6 in each case .
4) Prove that if p be a prime number and a be a positive integer. If p divides a 2, then p divides a also.
5) If p is a prime number, then prove that √p is irrational.
6) Determine the HCF of polynomials (x2 – 4x + 4) (x + 3) and (x2 + 2x - 3) (x - 2)?
7) If α and β are zeroes of the polynomial x2 – 2x – 15 then form a quadratic polynomial whose zeroes are 2α and 2β
8) If the sum of the zeroes of the polynomial f(t) = kt2 + 2t + 3k is equal to their product then the value of k is?
9) If (2 +√3) and (2 - √3) are two zeroes of 2x4 – 9x3 + 5x2 + 3x -1, then find its other zeroes .
10) Find the value of ‘a’ for which (x – a) is a factor of f(x) = -x3 + ax2 + 3x + 9
𝑥−𝑎 x−b x−c
11) If 𝑏+𝑐 + c+a + a+b = 3 then find the value of x .
12) in the given polynomial x2 – 2x - √5 find the value of
α
A) α-β (B) β (C) (α2-β2) – (α-β)2 – (α+β)2 where α, β are the zeroes of the polynomial
13) Solve ch 1 and ch 2 from NCERT Exempler
Project: - write history of real numbers comprises following points.
(a) History (b) Definition (c) Properties (d) Representation and uses in daily life (e) Difference from complex numbers
(f) Conclusion (students may take help from internet) Self Study--- 1) Real Numbers 2)Polynomials
Class- X-A+B+C Subject- Geo.
1. Complete and revise all quedtion of Chapter No. 1- Resources & Development in Geography, as a revision work.
2. Study thoroughly Chapter No. 02. Forest & Wild Life Resources of Geography and complete all questions in all respect of this chapter.
3. Make a plain copy containing 100 pages and draw/complete all maps shown in all chapters of Geography. Also complete all
the map exercise of all chapters of Geography given in the last exercise questions social science of Saraswati publication or
may be any other publishers.
Class- X Subject-S.St.
Q. 1. Explain any three beliefs of the conservatism that emerged after 1815.
Q.2. Write a short note on ‘The Role of Women in nationalist struggle.
Q.3.Expain any three features of the class of landed aristocracy of Europe.
Q.4. what factors led to rise of Nationalism in Europe?
Q.5. what steps did the French revolutionaries take to create a sense of collective identity among the French people?
Q.6. Explain what is meant by the 1848 revolution of the liberals? What were the political and economic ideas supported by the
liberals?
Q. 7. Mention the two major ethnic groups of Belgium.
Q.8. Describe the ethnic composition of Sri Lanka.
Q. 9. What’s wrong with a majority rule?
10. Here are some examples of power sharing. Which of the four types of power sharing do these represent? Who is sharing
power with whom?
Class- XComputer
Q1. Make any 15 MCQ on the following topics:Input Device, Output Device, HTML Tags
Q2. Make a list of various Computer Programming Language.
Q3. Learn and remember full form.
Q4. Class test will be conducted after holidays.
Class- XII
Subject- Hindi
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3- nks vkSipkfjd i= vkSj nks vukSipkfjd i= fyf[k,A
4- ysf[kdk egknsoh oekZ dk thou ifjp; ,oa lkfgfR;d jpukvksa dk mYys[k dhft,A
5- dfo gfjoa’k jk; cPpu dh dfork e/kq’kkyk dks baVjusV ds ek/;e ls lqfu;s vkSj ladyu dhft,A
6- izfl) xkf;dk yrk eaxs’kdj dk ifjp; vkSj mudh xhr lk/kuk ds laca/k es vkys[k fyf[k,A
7- lapkj dk 'kfDr’kkyh ek/;e% baVjusV vkSj cnyrs ;qx esa ukjh dh Hkwfedk ij fucaa/k fyf[k,A
8- ,d lekpkj i= ds izdk’ku esa fdl&fdl dh D;k D;k Hkwfedk gks ldrh gS vius vuqHko ds vk/kkj ij fyf[k,A
9- fgUnh vkSj vaxzsth esa izdkf’kr gksus okys jk"Vªh; Lrj ds izeq[k lekpkj i= vkSj if=dkvksa ds uke fyf[k,A
10- forku esa ladfyr dgkuh flYoj oSfMax dk lkjka’k fyf[k,A
Class XII
CLASS – XII (ENGLISH CORE)
1. Select two articles/write-ups/Reports from daily newspapers and make notes on them using proper format and
using abbreviations. Also write summary within 80 words. The original newspaper cutting MUST be pasted in the
Homework notebook. Each student must use different articles/write-ups/Reports for Note-Making & Summary
Writing.
2. You are the President of your school’s Theatre Club. Your club is organizing a play ‘The Miser’ to help the victims of
earthquake. Design a poster informing the students about this play. Invent necessary details.
3. You are Regional Sales Manager of a reputed pharmaceutical company. You need Science graduates with at
least 2 years experience and less than 28 years of age, as medical representatives for your company. Draft a
suitable advertisement in not more than 50 words to be published in the Situation Vacant column of a daily
newspaper.
4. The Students’ Council of your school is going to organize an excursion to Shimla for students of class XII during the
Summer Vacation. As President of the council, write a notice in not more than fifty words informing the students
about this excursion. Sign yourself as Ravi / Raveena.
5. You are Rahul, the Head boy of Creative Public School, Delhi. Recently your school hosted the Regional Level
CBSE Science Exibition. Write a report of this event for your school newsletter in about 175-200 words.
6. Recently a group of students of your class made a visit to a place of historical importance nearby your town.
Write a detailed report about your experience in 175-200 words to be published in the School Magazine.
7. You are Nitin/Natasha a student of Class XII at K.P.N. Public School Faridabad. A student is required to cope
with lot of pressure in today’s competitive environment. Write a letter to the editor of a national daily
highlighting the increasing stress faced by students and suggest ways to combat the same.
8. You are Apoorva, resident of 29, Rajendra Nagar, Lucknow. You are given the responsibility of fixing the venue
for your sister’s wedding. Write a letter in 125 words, to the Manager of a five-star hotel for booking the
wedding hall for wedding reception. Also inquire about the facilities, catering , decoration, other charges
etc.
9. You are Tushar Garg, residing at 100, Pushpanjali Apartments, Indore. You bought an LCD television from M/S
Sagar Electronics, Bada Bazar, Indore. It does not function properly. Write a letter to the Sales Manager of the
shop, complaining about the defect and seeking immediate replacement or repair, as necessary.
10. It is the habit of media to sensationalize the news to gain attention and to raise their viewership. The private
affairs of the celebrities and unnecessary issues are generally highlighted. Write an article on the topic in 150200 words.
11. Teenagers today are getting hooked on to the latest gadgets. Write a speech to be delivered in your school’s
morning assembly on ‘The advantages of technology versus its adverse effects’. ‘You are Sharan/Shalini’ Use the
input given below: (200 words) Gadgets : mobiles, ipods, computers,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.
Holiday Homework for Summer Vacation
Class- XII
Subject- Mathematics
1. for A= {1,2,3} , define a relation R in the set A as follows:
R= { (1,1), (2,2), (3,3), (1,3)}
Write the ordered pairs to be added to R to make it the smallest equivalence relation.
2. Let L be the the set of all lines in a plane and R be the relation in L defined as
R= { (L1,L2) | L1, is perpendicular to L2}
Show that R is symmetric but neither reflexive nor transitive.
3. An integer m is related to another integer n if m is integral multiple of n, check if relation is reflexive, symmetric and
transitive.
4. Show that the given relation R is defined on the Set A= {x € Z, 0  x 12} and R= { (a,b) | (a – b) is multiple of 4 , a,b € A}
5. Let A = { -2, -1, 0, 1,2} & f= {x, Xn} | x € A } show that
f : AA is neither one-one nor onto.
3
3
3𝑥+2
6. Let f: R – { }  R - { } defined by f(n) = {
} find f-1 , if it exists.
5
5
5𝑥−3
7. Let f: R  R be defined by f(x)= x3 – 1 then prove that f-1 exists and find f-1 , Hence find f-1(26) and f-1(-9)
8. Show that f: R R given by f(x)= ex in one – one but not onto.
9. Let f: WW be defined as f(n) = { n-1 if n is odd n+1 if n is even} show that f is invertible and find inverse of f. Here w is the set of all
whole num.
1
10. Let A= { -1,0,1,2} , B= {-4,-2, 0, 2} and f, g : A B be functions defined by f(x) = x2 –x , x€A and g(x) = 2 |x- 2 | -1 , x€A find fog
,gof and show that f = g = gof
11. Determine whether the function * on Q defined by
a * b= a + ab is a binary operation or not.
If yes determine whether it is cumulative and associative. Find the identity ( if exists). Find all the invertible element (if any) &
their inverse.
12. Determine whether the function * on P (x) is defined by
A * B = A B where P (x) determine the power set of a non empty set X, is a binary operation or not. If yes, determine whether
it is cumulative and associative. Find the identity ( if exists). Find all the invertible element (if any) & their inverse.
13. Draw the graph of all inverse trigonometric functions & Write their principle value branches.
14. Derive the identities:
Sin-1(-x) = - sin-1 x ,  x € [-1,1]
Cosec-1(-x) = - cosex-1 (-x) ,  x € R – (-1,1)
Cos-1(-x) =  -cos-1 X ,  x € [-1,1]
Sec-1 (-x) =  -sec-1 X,  x €R- (-1,1)
tan-1 (-x)= - sin-1 x ,  x € R
cot-1 (-x)=  - cot-1 X,  x €R
15. Find the principal value of the following
(i) Sin-1 (
−1
) (ii) Sin-1 (
2
−1
(V) cos-1 ( 2 )
3
2
(Vi) cos-1 (
1
−1
) (iii) Sin-1 ( 2 )
−1
2
)
(vii) sec-1 (2)
(iv) cos-1 (
3
2
)
2
(viii) sec-1 ( − 3)
(ix) tan-1( 3) (X) tan-1(-1) (Xi) cot-1(1) (Xii) cot-1 (-2)
2
X(iii) cosec-1(- 3)
Class- XII A& B
Subject- Physics
1. Revision of unit -1 Electrostatics
Chap – I Electric Charge and fields
Chap – II Electrostatic Potential and capacitance
Some extra numerical problems and HOTS from any reference book , value based questions from both chapters.
2. Practical Work:Write all experiment in practical notebook any 6 activities (3 from each section). Suggested by your teacher.
Class- XII A& B
Subject- Chemistary
1. Make an investigatory project on any topic f+rom the list of CBSE Project.
2. Complete all NCERT questions of chapter:- Solid State & Solution.
3. Do. Practice on numerical problems related to solid state & solution.
4. Prepare 20 extra – question from text book and write their answer. (Short answer type) (solid state & solution.)
Class- XII
Subject- Biology
1. Draw labelled diagrams:Chapter -1 Reproduction in organisms
(a) Budding in Yeast
(b Binary fission in Amoeba
(b) Types of Gametes (i) Isogametes (ii) Anisogametes
Chapter -2 Reproduction in Flowering Plants
(a) Enlarge View of a Microsporangium showing wall layers
(b) Anatropous Ovule (c) Fertilized Embryo sac
(d) Diagrammatic representation of development of an Embryo sac
(e) Stages in the Development of Dicot Embryo
(f) L.S. of Monocot Seed (g) L.S. of grass Embryo
Chapter – 3 Human Reproduction
(a) Male Reproduction System (b) Female Reproduction System
(c) Seminiferous Tubules Sectional view (d) Structure of Sperm
(e)Sectional view of ovary
(f) Schematic representation of Oogenesis & Spermatogenesis
(g) Diagrammatic representation of various events during Menstrual Cycle
(h) Fertilization, Transport of Ovum , Passage of growing embryo in Fallopian Tube.
2. Define/ Explain the following terms:(a)Juvenile Phase
(b) Oestrus Cycle
(c) Parthenogenesis
(d) Pericarp
(e) Perisperm
3. Write answer of the question given in the textbook of Chapter 1 &2.
Class- XII
Subject-History
Q1. “Our knowledge about the Indus valley civilization is poorer than that of other civilization.” Explain it by your arguments.
^^fla/kq ?kkVh dh lH;rk ds ckjs esa gekjs Kku dh rqyuk esa xjhc gSa vU; lH;rk,A^^ vius rdksZ ls ;g le>kb;sA
Q2. What were the differences in the techniques adapted by Marcell & Wheeler in studying Harappan Civilization.?
gM+Iik lH;rk ds v/;;u ds nkSjku ek’kZy vkSj dfua?ke ds }kjk viukbZ xbZ rduhdh eas D;k varj Fkk\
Q3. “Burials is a better source to trace social differences prevalent in the Harrapan Civilization.” Discuss.
^’kok/kku gM+Iik lH;rk esa O;kIr lkekftd fo"kerkvksa dks le>us dk ,d csgrj L=ksr gS ^^ ] O;k[;k djsA
Q4. How can you say that the Harrapan Civilization was an urban one?
vki ;g dSls dg ldrs gSa fd gM+Iik lH;rk ,d uxjh; lH;rk Fkh\
Q5. Write a note on the agricultural technology of Harrpans.
gM+IikbZ yksxksa dh d`f"k izkS|ksfxdh ij ,d ys[k fy[ksA
Q6. Discuss how archaeologist reconstruct the past.
ppkZ dhft, fd iqjkrRofon~ fdl izdkj vrhr dk iquZfuekZ.k djrs gSaA
Q7. Why 6th Century BCE often considered as a major turning point in Indian History .
NBh 'krkCnh bZ-iw- dks izkjafHkd Hkkjrh; bfrgkl esa ,d egRoiw.kZ ifjoRkZudkjh dky D;ksa dgk tkrk gS\
Q8. In Which languages and script Ashokan inscriptions were written?
v'kksd ds vfHkys[k fdu&fdu Hkk"kvks o fyfi;ksa esa fy[ks tkrs Fks\
Q9. Explain main features of Ashoka’s Dhumma?
v'kksd ds /kEe ds ckjs esa fy[ks\
Q10. Important changes agriculture during the period between 600 BCE to 600 CE.
NBh 'krkCnh bZ-iw- ls NBh lnh bZ- rd d`f"k {ks= es gq, eq[; ifjorZuksa dk mYys[k dhft,A
Q11Discuss the main features of Mauryan administration.
EkkS;Z iz’kklu dh izeq[k fo’ks"krkvksa ij ppkZ dhft,A
Q12. Discuss the nation of kings that developed in the post Mauryan period.
mRrj ekS;Z dky esa fodflr jktRo ds fopkjksa dh ppkZ dhft,A
1.
2.
3.
Class- XII-D
Subject- Geo.
Complete and revise all question of Chapter No. 1- Human Geography – Nature & Scope, 02-Population of the World –
Growth & Density & 03. Population Composition as a revision work.
Study thoroughly Chapter No. 04. Human Development, 09. International trade of Part – I and Chapter No. 09. Planning in
India- Idea of Sustainable development of part –II and complete all questions in all respect of these chapters.
Make 02 plain copies containing pages 100 each: 01 for part -1 Map work copy and other for Part – II Map work copy and
draw/complete all maps shown in all chapters of Part – I and Part – II given in the last exercise questions.