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The refractive index of water is 1.33.Wh...

The refractive index of water is 1.33.What will be the speed of light in water?

A

`3 xx 10^8 m s^(-1)`

B

`2.26 xx 10^8 m s^(-1)`

C

`4 xx 10^8 m s^(-1)`

D

`1.3 xx 10 ^8 m s^(-1)`.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. The frequency of ligth in a material is 2 xx 10^(14) Hz and wavelength...

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  2. A ray of light travelling in air have wavelength lambda,frequency v,ve...

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  3. The refractive index of water is 1.33.What will be the speed of light ...

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  4. Light travels through a glass plate of thickness t and having a refrac...

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  5. If imuj represents refractive index,when a light ray goes from medium ...

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  6. The refractive index of air w.r.t. med 1 is 6//7.The refractive index ...

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  7. A microscope is focussed ona mark on a piece of paper then a slab of g...

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

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  9. A ray of light travelling in a transparent medium of refractie index m...

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  10. Velocity of light in a liquid is 1.5 xx 10^8 ms^(-1) and in air,it is ...

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  11. Name the physical principle on which th eworking of potical fibres is ...

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

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  13. Focal length of a convex lens of refractive index 1.5 is 2 cm.Focal le...

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  14. A convex lens is dipped in a liquid,whose refrctive index is equal to ...

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  15. A lens is placed between a souce of light and a wall.It forms images o...

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  16. A boy is trying to start a fire by focussing sunlight on a piece of pa...

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  17. A bulb is located on a wll.Its image of equal size is to be obtained o...

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  18. A luminous object is placed at a distance of 30 cm from the convex len...

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  19. A lens having focal length f and aperture of diameter d//2 in the cent...

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  20. A plano-convex lens is made of a material of refrative index mu=1.5.Th...

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