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Time taken by the sun igth to pass throu...

Time taken by the sun igth to pass through a glas slab of 2 mm thickness,whose rrefrative index is 1.5 ,is

A

`10^(-8)s`

B

`10^(-11) s`

C

`10^(-6) s`

D

`10^(-9) s`.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. When light passes from one medium to another medium, which one of thes...

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  2. In refraction,light waves are bent on passing from one medum to the se...

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  3. Time taken by the sun igth to pass through a glas slab of 2 mm thickne...

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  4. A ray o light is incident on the surface of separation of a medium wit...

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  5. A glass slab of thickness 12 mm is placed on a table .The lower surfa...

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  6. Total inrternal reflection tkes place

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  7. The value of the critial angle is least for which of the following col...

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  8. Answer the following questions: A diver under water, looks obliquely ...

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  9. A pile 4 m high stands in the lake,such that it protrudes y 1m above t...

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  10. A transparent cube of side 210 mm contains a small air bubble. Its app...

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  11. If the critical angle for total internl reflection from a medium to v...

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  12. Light enters at an angle of incidence in a transparent rod of material...

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  13. Explain the formation of mirage.

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  14. Twinkling of stars is due to atmospheric:

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  15. Twinkling of stars is due to atmospheric:

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  16. A plano-convex lens is made of refractive index 1.6.If the radius of c...

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  17. A convex lens becomes less converging when placed in

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  18. An air bubble inside the water behaves as:

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  19. A lens behaves as a converging lens in air and diverging lens in wate...

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  20. A point source of light B,placed in front of the centre of a mirror of...

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