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Why is a convex mirror preferred as a reflector in a street lamp?

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ICSE-ICSE ANNUAL EXAMINATION -2020-SECTION-II
  1. Why is a convex mirror preferred as a reflector in a street lamp?

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  2. The figure below shows the velocity-time graph of a body moving in a s...

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  3. The figure below shows the velocity-time graph of a body moving in a s...

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  4. The SI unit of length is represented by the Symbol .m.. What is the...

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  5. When is a vernier callipers said to be free from zero error?

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  6. Name the principle on which screw gauge works.

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  7. Draw a graph (not to the scale) representing the variation of square o...

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  8. If the length of a simple pendulum is increased to four times the init...

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  9. A car travels from A to B and returns to its original position. The...

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  10. A car travels from A to B and returns to its original position. The...

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  11. A car travels from A to B and returns to its original position. The...

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  12. A book is kept on the table as shown in the diagram. Copy the diagram ...

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  13. Action and reaction act on the :

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  14. State Newton.s second law of motion.

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  15. Find the force exerted on a mass of 20 g if the acceleration produced ...

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  16. The change in momentum of a body is represented by Deltap=m Deltav. ...

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  17. Name and state the principle on which a hydraulic press works. Write o...

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  18. The pressure exerted on the smaller and the larger piston of a hydraul...

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  19. An altimeter is an aneroid barometer which makes use of the change in ...

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  20. An altimeter is an aneroid barometer which makes use of the change in ...

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  21. An altimeter is an aneroid barometer which makes use of the change in ...

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