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For an incident ray directed towards cen...

For an incident ray directed towards centreof curvature of a spherical mirror, the reflected ray:

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The ray of light passes through the centre of curvature of a concave mirror it strikes the mirror along the normal ray, it incidences on to the mirror at an angle of 90 degrees. ... Hence, the angle of reflection tends to zero degree, thus the ray of light retraces its path.
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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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