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Which spherical mirror is used as a refl...

Which spherical mirror is used as a reflector in street lamps to diverge light over a large area?

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ICSE-MODEL TEST PAPERS -Model Test Paper 2 (Section I)
  1. A car has 3000 J of energy. What will happen if the speed is doubled?

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  2. Define power. What is its Sl unit?

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  3. Arrange air, glass, and water in the ascending order of optical densit...

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  4. Consider a ray of light passing from one medium to another. If the ang...

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  5. Mark the correct light ray as it travels through different mediums.

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  6. An imaginary line passing through the pole and the centre of curvature...

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  7. Which spherical mirror is used as a reflector in street lamps to diver...

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  8. The change of state from liquid to gas that takes place at the surface...

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  9. How is anomalous expansion of water useful for aquatic animals?

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  10. State one application of thermal expansion of liquids.

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  11. What property of pyrex glass makes it suitable for cooking?

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  12. Observe the given figure and mark the following: compressions

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  13. Observe the given figure and mark the following: rarefactions

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  14. Observe the given figure and mark the following: one complete wav...

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  15. Which one would have a lower pitch: a small thinner string under tensi...

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  16. Write two differences between pitch and loudness.

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  17. What is the voltage of live wire in India? What is the colour of the l...

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  18. What is the function of a fuse?

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  19. Name the unit of energy that is used to measure the amount of electric...

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  20. How do you charge a gold leaf electroscope negatively by induction?

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