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If the focal length of a concave mirror is 12 cm, what would be its radius of curvature?

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ICSE-MODEL TEST PAPERS -Model Test Paper 1 (Section II)
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  3. As we go higher, what happens to the atmospheric pressure?

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  4. A car of mass 800 kg is moving at 300 m/s, and an autorickshaw of mass...

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  5. The power of a bulb is 60 W. What does this statement mean?

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  6. Observe the given figure and identify which medium is optically denser...

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  7. What do you mean by dispersion of light?

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  8. For an incident ray directed towards centreof curvature of a spherical...

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  9. If the focal length of a concave mirror is 12 cm, what would be its ra...

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  10. What is the nature of the image formed by a convex mirror?

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  11. Write two principles on which a refrigerator works.

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  12. Distinguish between Boiling and evaporation

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  13. What is the relationship between coefficient of cubical expansion and ...

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  14. What is anomalous expansion of water?

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  15. Bridges, roads, and railway lines are made in sections separated by ru...

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  16. What do you mean by timbre or quality of sound?

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  17. What do you mean by pure tone? Which instrument can produce it?

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  18. What is the function of an earth wire? Why is it necessary to earth me...

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  19. If a geyser is rated at 1.5 kW. - 220 V, what does it mean?

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  20. Observe the picture given below. Which one would be a negatively charg...

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