complete the following assignment questions lesson :- chandni

Month- NOVEMBER Week – 3

Class- VII Subject- English

Complete the following assignment questions Lesson :- Chandni Comprehension Check (Page 45) and (Page 49)

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Class- VII Subject- Marathi

Complete the following assignment questions

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Class- VII Subject- Maths

Complete the following assignment questions Q-1 Identify which of the following pairs of angles are complementary and which are supplementary. (a) 64 0 ,56 0 (b) 120 0 ,60 0 (c) 45 0 ,55 0 (d) 25 0 ,65 0

Q-2 Identify and write each pair of angle.

(a)∠2,∠4 (b)∠1,∠8 (c)∠4,∠5 (d)∠3,∠6 (e)∠5,∠7 (f)∠5,∠8

Q-3 Find the angle which is equal to its complement Q-4 Define parallel lines and transversal. Q-5 Write all the properties given in chapter 5 Lines and Angles. ----------------------------------------------------------------------------------------------------

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Class- VII Subject- Physics

Complete the following assignment questions Define : a) motion b) speed c) average speed

1) A train is travelling at a speed of 100 km/hr. How long will it

take to complete a journey of 500 km without stopping in

between.

2) Ramesh takes 15 minutes to reach market from his house on

this cycle. If the speed of his cycle is 4 m/s calculate the

distance between his house and market?

3) Convert 54 km/hr. into m/s

4) The distance between two stations is 240 km. A train takes 4

hours to cover this distance. Calculate the speed of the train.

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Class- VII Subject- Chemistry

Complete the following assignment questions 1 Explain how groundwater is recharged.

2 You have been asked to maintain a garden. How will you minimise the use of water?

3 Explain the factors responsible for the depletion of water table.

4 Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. (T/F) (b) Water shortage is a problem faced only by people living in rural areas. (T/F) (c) Water from rivers is the only source for irrigation in the fields. (T/F) (d) Rain is the ultimate source of water. (T/F)

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Class- VII Subject- Biology


1) What is meant by respiration? What is the main difference

between aerobic respiration and anaerobic respiration?

2) What is breathing?

3) Why does running make a man breathe faster?

4) What type of respiration take place in human muscles during

heavy physical exercise?

5) Write differences between inhalation and exhalation.

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Class- VII Subject- History

Complete the following assignment questions 1. Why did people from distant lands visit Surat? 2. What were the problems encountered by merchants of medieval times? Do you think some of these problems persist today? 3. Find out more about the architecture of either Thanjavur or Hampi and prepare a scrapbook. 4. Find out about any present day pilgrimage centre .Why do think people go there? What do they do there?

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Class- VII Subject- Geography

Complete the following assignment questions ---------------------------------------------------------------------- 1. Define the following terms. a. water cycle b. Waves c. Tides d. Tsunami e. Ocean currents f. Ocean salinity g. Precipitation h. Explain with diagram the formation of Tides -----------------------------------------------------------------------------------

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Class- VIII Subject- English

Complete the following assignment questions This is Jody’s Fawn Questions: 1. What happens to Jody’s father? And what did Jody do? 2. Why was Penny feeling proud? 3. Why was Jody unwilling to have Mill-wheel with him? 4. Describe the meeting of fawn and Jody in your own words.

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Class- VIII Subject- Marathi


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Class- VIII Subject- Maths

Complete the following assignment questions Exercise 9.3

Exercise 9.4

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Class- VIII Subject- Physics

Complete the following assignment questions 1) What do you mean by good conductors of electricity?

2) What do you mean by bad conductors of electricity?

3) List two sources which produce electricity on a small scale.

4) List two sources of which produce electricity on a large scale.

5) Do the liquids conduct electricity?

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Class- VIII Subject- Chemistry

Complete the following assignment questions 1 Explain why fossil fuels are exhaustible natural resources.

2 Explain the process of the formation of petroleum.

3 Tick True/False against the following statements : [NCERT]

1. Fossil fuels can be made in the laboratory. (T/F) 2. CNG is more polluting fuel than petrol. (T/F) 3. Coke is almost pure form of carbon. (T/F) 4. Coal tar is a mixture of various substances. (T/F) 5. Kerosene is not a fossil fuel. (T/F)

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Class- VIII Subject- Biology


1) What is cell?

2) Explain the structure of a cell.

3) Who saw cells first and when?

4) What are the building blocks of life? Why are they so

called?

5) Why are cells of different shapes and sizes? Give

suitable example?

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Class- VIII Subject- History

Complete the following assignment questions 1. Who were the Agagria? 2. Why the Indian iron smelting industry decline in the 19th century? 3. What helped TISCOto expand steel production during the First World War? 4.How did the development of cotton industries in Britain affect textile products in India?

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Class- VIII Subject- Geography

Complete the following assignment questions -------------------------------------------------------------------------- 1. Distinguish between thermal power and hydel power 2. Distinguish between Anthracite coal and bituminous coal. 3. Why the alternative sources of energy is necessary at present? Explain in details. ---------------------------------------------------------------------------------

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Class- IX Subject- English

Complete the following assignment questions On Killing a Tree Extra Questions: 1. How does a tree become strong? 2. “So hack and chop/ But this alone won’t do it.” What won’t this do? Why won’t it do it? 3. What is the meaning of “bleeding bark”? What makes it bleed? 4. What are miniature boughs? What happens if they are left unchecked? 5. How does the tree heal itself? 6. How does the poet describe the growth of the tree in the first stanza of the poem?

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Class- IX Subject- Marathi


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Class- IX Subject- Maths

Complete the following assignment questions Exercise 12.2

Exercise 13.1

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Class- IX Subject- Physics

Complete the following assignment questions 1) State law of conservation of momentum.

2) How does a rocket work?

3) Explain the working of a jet aeroplane.

4) State third law of motion.

5) How do we walk on the ground?

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Class- IX Subject- Chemistry

Complete the following assignment questions 1. List the points of differences between homogeneous and heterogeneous mixtures.

2. How are sol, solution and suspension different from each other?

3 Which separation techniques will you apply for the separation of the following? (a) Sodium chloride from its solution in water. (b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride. (c) Small pieces of metal in the engine oil of a car. (d) Different pigments from an extract of flower petals. (e) Butter from curd. (f) Oil from water. (g) Tea leaves from tea. (h) Iron pins from sand. (i) Wheat grains from husk. (j) Fine mud particles suspended in water.

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Class- IX Subject- Biology

Complete the following assignment questions 1) Give the composition of blood. 2) Why are voluntary muscles also called skeletal muscles? 3) Which cells are responsible for contraction and relaxation movements? 4) Which animal tissue helps in repair of tissue and fills the space inside the organ? 5) Which tissue in plants provides them flexibility? 6) Infectious diseases are the diseases that can spread from infected person to the healthy person. Which of the following can make you ill if you come in contact with an infected person?

(a) Genetic abnormality (b) Blood cancer (c) High blood pressure (d) Sneezing and coughing 7) Xylemis the specializedtissue of the plants that transports water and nutrients from the soil to the upper parts like stems and leaves of plant and provides mechanical support to them. It is composed of four different types of the cells. Which of the following is not one a type of cell found in xylem tissues?

(a) Tracheids (b) Vessels (c) Xylem parenchyma (d) Sieve tubes

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Class- IX Subject- History

Complete the following assignment questions 1. What is a parliament? 2. Describe the major constitutional functionaries in India. 3. How is the Loksabha more powerful than Rajyasabha? Write in brief. 4.Discuss the powers and functions of the parliament in India.

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Class- IX Subject- Geography

Complete the following assignment questions -------------------------------------------------------------------- 1.Why does the peninsular region not have a well defined cold season? 2. How are tropical cyclones caused towards eastern side of India? 3. How are northeast trade winds influenced on the Ganga valley? 4. What are Mango Showers? 5. What is October heat? 6. Describe the tropical cyclones ---------------------------------------------------------------------------------

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Class- X Subject- English


1. What was Valli’s favourite pastime?

A. Valli’s favourite pastime was to gaze at the hustle and bustle of the street.

2. What was a source of unending joy for Valli? What was her strongest desire?

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Class- X Subject- Marathi


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Class- X Subject- Maths


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CLASS: X TOPIC: REAL NUMBERS SUBJECT: MATHEMATICS

1. If 7x5x3x2 + 3 is composite number? Justify your answer 2. Show that any positive odd integer is of the form 4q + 1 or 4q +3 where q is a positive integer 3. Prove that √2 + √5 is irrational 4. Use Euclid’s Division Algorithms to find the H.C.F of a) 135 and 225 (45) b) 4052 and 12576 (4) c) 270, 405 and 315 5. Prove that 5 - 2√3 is an irrational number 6. Find the HCF and LCM of 26 and 91 and verify that LCM X HCF = Product of two numbers (13,182) 7. Explain why 29 is a terminating decimal expansion

23 x 5

3

8. given that LCM (77, 99) = 693, find the HCF (77, 99) (11) 9. Find the greatest number which exactly divides 280 and 1245 leaving remainder 4 and 3 (138) 10. Prove that √2 is irrational 11. The LCM of two numbers is 64699, their HCF is 97 and one of the numbers is 2231. Find the other (2813) 12. If HCF (6, a) = 2 and LCM (6, a) = 60 then find a (20) 13. Two numbers are in the ratio 15: 11. If their HCF is 13 and LCM is 2145 then find the numbers (195,143) 14. Express 0.363636………… in the form a/b (4/11) 15. Find the HCF 52 and 117 and express it in form 52x + 117y 16. Write the HCF of smallest composite number and smallest prime number 17. Write whether 2√45 + 3√20 on simplification give a rational or an irrational number 2√5

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Class- X Subject- Physics

Complete the following assignment questions 1) Distinguish between a convex and a concave lens.

2) Where should an object be placed in front of a convex lens to

obtain it's virtual errect and magnified image?

3) Define : Linear magnification produced by a lens.

4) The lens A produces a magnification of -0.6and lens B +0.6.Write

nature of lenses A and B.

5)An object is placed at a distance of 50cm from a concave lens of

focal length 20cm.Find the nature and position of the image.

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Class- X Subject- Chemistry


1What would you observe when zinc is added to a solution of iron (II) sulphate ? Write the chemical reaction that takes place.

2 Why do ionic compounds have high melting points ?

3 Which metals do not corrode easily ?

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Class- X Subject- Biology

Complete the following assignment questions 1) Define Spore formation. 2) In the human body what is the role of (i) seminal vesicles (ii) prostate gland 3) What is the effect of DNA copying which is not perfectly accurate on the reproduction process? 4) The number of chromosomes in parents and offsprings of a particular species remains constant due to:

(a) Doubling of chromosomes after zygote formation (b) Halving of chromosomes during gamete formation (c) Doubling of chromosomes after gamete formation (d) Halving of chromosomes after gamete formation 5) Which among the following does not reproduce by spore formation? (a) Penicillium fungus (b) Yeast fungus (c) Mucor fungus (d) Rhizopus fungus

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Class- X Subject- History

Complete the following assignment questions 1. Why was G77formed by the developing countries? 2. Which values are associated with globalization? 3. What were the main results of the Second World War? 4. What is an MNC? What is the effect on world economy of relocation of production to India and China?

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Class- X Subject- Geography

Complete the following assignment questions --------------------------------------------------------------------------- 1. What is meant by the Gross Domestic Product (GDP) of a country? Explain in detail. 2. Distinguish between Primary sector and Secondary sector. 3.Explain how a shift has taken between sectors in developed countries? -------------------------------------------------------------------------------

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Class- XI Subject- English

Complete the following assignment questions Answer the following in70-80 words 1. - Laws are never respected nor enforced in India.

.2 - “Are we to leave our successors a scorched planet of advancing deserts, impoverished landscapes and an ailing environment?”

3. - “We have not inherited this earth from our forefathers; we have borrowed it from our children”.

4. - The problems of overpopulation that directly affect our everyday life.

Thinking about language

The phrase ‘inter alia’ meaning ‘among other things’ is one of the many Latin expressions commonly used in English. Find out what these Latin phrases mean.

1. prima facie

2. ad hoc

3. in camera

4. ad infinitum

5. mutatis mutandis

6. caveat

7. tabula rasa

Working with words

I. Locate the following phrases in the text and study their connotation.

1. gripped the imagination of

2. dawned upon

3. ushered in

4. passed into current coin

5. passport of the future

II. The words ‘grip’, ‘dawn’, ‘usher’, ‘coin’, ‘passport’ have a literal as well as a figurative meaning. Write pairs of sentences using each word in the literal as well as the figurative sens

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Class- XI Subject- Maths

Complete the following assignment questions.

1. If 5,4,3,2,1U , 4,2,1A , 4,3,1B , verify that BABA .

2. Multiply i23 by its conjugate. 3. If A = { x: x is a prime number less than 6 }, write the power set of .A 4. Express the complex number 335 i in iba form.

5. Solve for x : .0522 xx 6. If U { 10,20,30,….,100 }, 70,50,30,10A , 40,30,20B , and

90,60,50,20C , find (i) BA (ii) CA

(iii) CBA (iv) BCA )(

7. Find the values of x and y , if .261 2 xiiyi

8. Convert the complex number in polar form : iz 1 .

9. In a group of 1000 people, 750 can speak Hindi and 400 can speak Bengali.

(i) How many can speak Hindi only? (ii) How many can speak Bengali only? (iii) How many can speak both Hindi and Bengali?

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Class- XI Subject- Physics

Complete the following assignment questions 1. Along a streamline, (a) the velocity of a fluid particle remains constant (b) the velocity of all fluid particles crossing a given position is constant (c) the velocity of all fluid particles at a given instant is constant (d) ‘ the speed of a fluid particle remains constant, 2. For a surface molecule, (a) the net force on it is zero (b) there is a net downward force (c) the potential energy is less than that of a molecule inside (d) the potential energy is more than that of a molecule inside 3. Pressure is a scalar quantity, because (a) it is the ratio of force to area and both force and area are vectors. (b) it is the ratio of the magnitude of the force to area. (c) it is the ratio of the component of the force normal to the area. (d) ‘it does not depend on the size of the area chosen 4. A wooden block with a coin placed on its top, floats in water as shown in figure. The distance / and h are shown in the figure. After sometime, the coin falls into the water. Then, (a) l decreases (b) h decreases (c) l increases (d) h increases 5. With increase in temperature, the viscosity of (a) gases decreases (b) liquids increases (c) gases increases (d) liquids decreases

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Class- XI Subject- Chemistry

Complete the following assignment questions 1. Using molecular orbital theory, compare the bond energy and magnetic character of O2+ and O2– species 2. Explain the shape of BrF5. 3. Structures of molecules of two compounds are given below :

(a) Which of the two compounds will have intermolecular hydrogen bonding

and which compound is expected to show intramolecular hydrogen bonding.

(b) The melting point of a compound depends on, among other things, the extent of hydrogen bonding. On this basis explain which of the above two compounds will show higher melting point.

(c) Solubility of compounds in water depends on power to form hydrogen bonds with water. Which of the above compounds will form hydrogen bond with water easily and be more soluble in it. 4. Give reasons for the following :

(i) Covalent bonds are directional bonds while ionic bonds are nondirectional.

(ii) Water molecule has bent structure whereas carbon dioxide molecule is linear. (iii) Ethyne molecule is linear

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Class- XI Subject- Biology

Complete the following assignment questions 1. Define growth, differentiation, development, dedifferentiation, development, redifferentiation, determinate growth, meristem and growth rate. 2. Describe briefly:

(a) Arithmetic growth

(b) Geometric growth

(c) Sigmoid growth curve

(d) Absolute and relative growth rates

3. List five main groups of natural plant growth regulators. Write a note on discovery, physiological functions and agricultural/horticultural applications of any one of them. 4. Why is abscisic acid also known as stress hormone? 5. Which one of the plant growth regulators would you use if you are asked to:

(a) induce rooting in a twig

(b) quickly ripen a fruit

(c) delay leaf senescence

(d) induce growth in axillary buds

(e) ‘bolt’ a rosette plant

(f) induce immediate stomatal closure in leaves

6. What would be expected to happen if:

(a) GA3 is applied to rice seedlings

(b) dividing cells stop differentiating

(c) a rotten fruit gets mixed with unripe fruits

(d) you forget to add cytokinin to the culture medium.

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Class- XI Subject- Computer

Complete the following assignment questions Design a program to compute factorial of a number Design a program to compute x raised to power y using while loop Design a program to compute sum of digits of a number

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Class- XII Subject- English

Complete the following assignment questions Answer the following questions in about 30-40 words: Question.1. Why did Gandhiji feel that taking the Champaran case to court was useless? Question.2. How did the Champaran peasants react when they heard that a Mahatma had come to help them? Question.3. What made the Lieutenant Governor drop the case against Gandhiji? Question.4. Why did Gandhiji oppose when his friend Andrews offered to stay in Champaran and help the peasants? or Why did Gandhiji object to CF Andrews’ stay in Champaran? (Foreign 2009) Question.5. Why do you think Gandhi considered the Champaran episode to be a turning point in his life? Question.6. What did the peasants pay to the British landlords as rent? Question.7.Why did Gandhiji decide to go to Muzaffarpur before going to Champaran? Question.8.Why do you think the servants thought Gandhi to be another peasant? Question.9.”The battle of Champaran is won!.” What led Gandhiji to make this remark? Question.10.Why did Gandhi agree to the planters’ offer of a 25% refund to the farmers? Question.11.How was Gandhi able to influence the lawyers? Give instances. or Hbw was Gandhiji able to influence the lawyers?

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Class- XII Subject- Maths

Complete the following assignment questions. 1. Prove that the radius of the right circular cylinder of the greatest curved

surface area which can be inscribed in a given cone, is half that of the

cone.

2. Find the intervals in which the function 724683 234 xxxxxf is

strictly (a) increasing (b) decreasing.

3. If 1 cottan 1y xx y , find .dy

dx

4. Using matrix method, solve the following system of equations :

2 3 10 4x y z ,

4 6 5 1x y z ,

6 9 20 2x y z .

5. Show that cbxaxy 23 is a solution of the differential equation

.063

3

adx

yd

6. Find the general solution of the differential equation .1 26 dxxdyx

7. Form the differential equation corresponding to xbxbay 2 by

eliminating a and b .

8. Find the area enclosed by the circle .222 ayx

9. Find the area included between the curves axy 42 and ayx 42 , .0a

10. Find the area of the region bounded by ,tan xy 0x and .4

x

WEEKLY ASSIGNMENT


Class- XII Subject- Physics

Complete the following assignment questions 1. Which of-the following is not a property of light? (a) It can travel through vacuum (b) It has a finite speed (c) It requires a material medium for its propagation (d) It involve transportation energy 2. Two points P and q are situated at the same distance from a source of light but on opposite sides. The plane difference between the light waves passing through P and q will be: (a) n (b) 2n (c) π/2 (d) zero 3. Which of the following cannot be polarised? (a) radiowaves (b) transverse waves (c) sound waves (d) X-rays 4. If a mirror is approaching you at a speed of 10 ms^1, the speed with which your image approach you is: (a) 10 ms-1 (b) 5 ms-1 (c) 20 ms-1 (d) 15 ms-1

5. The refractive indices (R.I.) of glass and water with respect to air are 3/2 and 4/3 respectively. The R.I. of glass w.r. to w ater is: (a) 8/9 (b) 9/8 (c) 7/6 (d) 2 6. A convergent lens will become less convergent in : (a) oil (b) water (c) both of (a) and (b) (d) none of these

WEEKLY ASSIGNMENT


Class- XII Subject- Chemistry


1. What do you understand by shape selective catalysis? Why are zeolites good shape selective catalysts?

2. On the basis of Hardy-Schulze rule explain why the coagulating power of phosphate is higher than chloride.

3. What are the applications of adsorption in chemical analysis? 4. How do emulsifying agents stabilise the emulsion? 5. How will you distinguish between dispersed phase and dispersion medium

in an emulsion? 6. How does the precipitation of colloidal smoke take place in Cottrell

precipitator?

WEEKLY ASSIGNMENT


Class- XII Subject- Biology

Complete the following assignment questions 1. How can a person suffering from Adenosine Deaminase deficiency be cured? 2. Explain five areas where biotechnology has influenced human lives. 3. What are the advantages of recombinant insulin? 4. What are the drawbacks of the insulin obtained from the slaughtered cows and pigs? 5. What are antigens and antibodies? Name any two diagnostic kits based on that. 6. How is a foreign DNA introduced in a host maintained by a host and transferred to the successive generations? 7. How can the gene expression be controlled with the help of RNA?

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Class- XII Subject- Computer


Design a recursive python function to compute factorial of a number Design a recursive python function to compute x raised to power y Explain concept of recursion

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complete the following assignment questions lesson :- chandni

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