कक ष दसव ववज ञ प ल ख न ब ध-शशक ष क महत व,प रर वरण एव म स रक ष,आपद प रब ध प रत र क प स 3-3 प रश -उतर व च र - एव म पद पररचर

Transcription

1 कक ष -10 दशहर अवक श ग रह क र य 1-न ब ध ल ख (क) प ल स ट क क द न र (ख) टवद श प र म (ग) ई-कचर 2-पत र ल ख (क) औपच ररक (ख) अ पच ररक 3-अपठ त द गदर श(प रश तर सठहत) अपठ त द क वर श(प रश तर सठहत) 4-प रत र क प क भ ष अध र र कर 5-ववदर लर म "शशक षक ठदवस"सम र ह म र गर इस ववषर पर प रनतव द त र र कर 6-न द श अ स र उत तर द स र (क)-र द र तथ श र ग र र स क टथ र भ व शलख 7-न म शलखत व क र क पद पररचर द स र (र ध ववदर लर त त ह ) (वह) क र कहत ह? (क शव) क ल ख त ह (अर व ह!)ककत स दर ह कक ष दसव ववज ञ प ल ख न ब ध-शशक ष क महत व,प रर वरण एव म स रक ष,आपद प रब ध प रत र क प स 3-3 प रश -उतर व च र - एव म पद पररचर Holiday homework class 10

2 English 1.Write complaint letter 5,inquiry letter 5,letter for placing order 5,letter to editor 5. 2 Practice outline story 3.One unseen passage daily poem and prose both. 4. Learn the names of poems and poets and write them properly in copy. 5 Read chapters and poems thoroughly for comprehension passage. Holiday Homework Science Class Name the part of brain which controls the posture and balance. 2.Name a device that helps to maintain a potential difference across a conductor. 3.Name the sodium compound used for softening hard water. 4.Although metals form basic oxides, name one metal which forms an amphoteric oxide. 5.A piece of granulated zinc was dropped into copper sulphate solution. After sometime, the color of the solution changed from blue to colourless. Why? 6.When we breathe out, why does the air passage not collapse? 7.Explain the nature of the covalent bond using the bond formation in CH 3 Cl. 8.What is the principle of an electric motor? 9.List out the basic features of reproduction. 10.Which mode of reproduction involves fusion of gametes? 11.Name an alloy that contains a non metal as one of its constituents. 12.Which metal is the best reflector of light? 13.Determine the rate at which energy is delivered by a current. 14. A wire of resistivity is pulled double to its length. What will be its new resistivity?

3 15.What will happen if platelets were absent in the blood? 16.Mention four differences between saturated and unsaturated hydrocarbons. 17.Two circular coils A and B are placed closed to each other. If the current in the coil is changed, will some current be induced in the coil B? Give reason. 18.A brown substance X on heating in air forms a substance Y, when hydrogen gas is passed over heated Y, it again changes back into X. Name the substance X and Y. 19.Name a non metallic element which conducts electricity. 20.Give one example of an organism which reproduces asexually by budding. 21.Which hormone is responsible for the secondary sexual characters in the male human beings. 22.How is voltmeter connected in circuit to measure the potential difference between the two points? 23.List the two characteristics of covalent compounds. 24.What happens to the pupil of eye when the light is 25.Which type of organisms will have more variations - sexually or asexually reproduced organisms? Justify. 26.How does the strength of the magnetic field due to a current carrying conductor depends upon (i) Distance from the conductor (ii) Current flowing through the conductor. 27.Name a metal which (i) is the good conductor of heat. (ii) has a very low melting point (iii) does not react with oxygen even at high temperature (iv) is most ductile Holiday Homework Autumn Break Social Science Class 10

4 1. The resolution of Purana Swaraj was adopted at which Congress session? 2. What do you understand by the term Dam? 3. Define homogenous society. 4. What do you understand by double coincidence of wants? 5. What is barrier on foreign trade? 6. What do you understand by secular state? 7. Who hosted the congress at Vienna in 1815? 8. What was the Inland Emigration Act of 1859? Explain. 9. Name the important beverage crop introduced by the British in India. Explain the geographical conditions needed. 10. Describe any five features of the caste system in India. 11. Why the demand deposits are considered as money? 12. Why did group 77 countries demand a New International Economic Order? Explain. 13. Who designed the Swaraj flag? What were the features of this flag? How was it used as a symbol of defiance? 14. Identify any three hydraulic structures as a part of water management programs initiated in ancient India along with the period when they were built. 15. Explain any two aspects concerning the origin of social differences. 16. Why is it necessary for the banks and cooperative societies to increase their lending facilities in rural areas? Explain. 17. Describe the tension that existed between the Dutch and French-speaking people in Belgium. 18. Mention any four characteristics of Development. 19. Explain any five consequences of the Great Depression of 1929 on Indian economy. 20. What is communalism? How is communalism a hindrance in the functioning of our democracy? Explain. 21. Give an account of rice cultivation in India, under the following heads: (A) Climatic condition (B) Soil requirement (C) Two major rice producing states 22. How can the formal sector loans be made beneficial for poor farmers and workers? Suggest any five measures. 23. (A)What was the Corm Laws? (B)Why was the Corn Laws abolished? (C)What was the result of the abolishing of Corn Laws? 24. Describe the important factors responsible for the water scarcity in the world. 25. How far is it correct to say that it is not politics that gets politicized? Explain. 26. On the given outline map of India locate, mark and label the following with: (A) Durg iron ore mine. (B) Raniganj coal mine. (C) Jalcher Thermal Power plant. (D)

5 शरत क ल न वक श ग हक र य कक ष दशम (E) स टकर त अध र वपत-प ( प रश सम ध म, स टकर तस ख र प रर ग, अन र वर करणटर ववषर : ) टमरण कर त व गरहक र य प स टतक र म कव र ल ख म Class 10-B Maths Q:1 Solve all examples of chapters coming mid term test. Q:2 Practice questions from NCERT (At Least 2 each type) Q:3 Solve the given assignments (This is optional)

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12 ASSIGNMENT Maths CLASS X-A Revise the complete syllabus of SA1. Prove that 5 is irrational. If α and β are the zeroes of f(x)= kx²+4x+4 such that α²+β²=24, find k. F(x)= 3x⁴+6x³-2x²-10x-5 if two of its zeroes are 5/3 and - 5/3 find the other two zeroes. Find a and b such that x⁴+x³+8x²+ax+b is divisible by x²+1. Draw the graph of 2x+y=6 and 2x-y=2. Shade the region bounded by these lines and x axis. Solve x+y = a+b ax-by = a²-b² A boat goes 12 km upstream and 40 km downstream in 8 hours. It can go 16 km upstream and 32 km downstream in same time. Find the speed of boat in still water. Find the roots of the quadratic equations: x²- (2p-7q)x -14pq = 0

13 a²b²x² + 2abx +1= 0 (a-b)x² + (b-c)x +(c-a) =0 Solve for x 1/(a+b+x) =1/(a)+1/b +1/x where x,a,b are not equal to zero Show that the sum of an AP whose first term is a and second term b and the last term c is equal to (a+c)(b+c-2a)/2(b-a) If an AP is S n = x(4n+1) find the AP. Determine k so that k²+4k+8, 2k²+3k+6, 3k²+4k+4 are consecutive terms of an AP. Prove that the area of a semi circle on the hypoteneuse of a right angled triangle is equal to the sum of the areas of the semi circle drawn on the other 2 sides of a triangle.