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The refractive index of water is 4//3. T...

The refractive index of water is `4//3.` The speed of light in water is

A

`1.50xx10^8 m//s`

B

`1.78xx10^8 m//s`

C

`2.25xx10^8 m//s`

D

`2.67xx10^8 m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
`v=c/mu=(3xx10^8)/((4//3))=2.25xx10^8 m//s`
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DC PANDEY-REFRACTION OF LIGHT-Level 1 Objective
  1. Critical angle of light passing from glass to air is least for

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  2. The power in dioptre of an equi-convex lens with radii of curvature of...

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  3. The refractive index of water is 4//3. The speed of light in water is

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  4. White light is incident from under water on the the water-air interfac...

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  5. When light enters from air to water, then its

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  6. In the figure shown sin i/sin r is equal to

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  7. In figure, the reflected ray B makes an angle 90^@ with the ray C. If ...

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  8. A prism of apex angle A=60^@ has the refractive index mu=sqrt2. The an...

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  9. A thin equi-convex lens is made of glass of refractive index 1.5 and i...

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  10. A ray of light, travelling in a medium of refractive index mu, is inci...

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  11. The given equi-convex lens is broken into four parts and rearranged as...

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  12. A thin convergent glass lens (mug=1.5) has a power of +5.0D. When this...

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  13. Two convex lenses of focal length 10 cm and 20 cm respectively placed ...

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  14. A prism can have a maximum refracting angle of (thetaC=critical angle ...

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  15. A ray is ihncident at an angle of incidence ii on one surface of a pri...

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  16. The refracting angle of a prism is A and refractive index of the mater...

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  17. A prism of refractive index sqrt2 has refractive angle 60^@. In the or...

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  18. The focal length of a combination of two lenses is doubled if the sep...

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  19. A convexo-concave convergent lens is made of glass of refractive index...

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  20. An optical system consists of a thin convex lens of focal length 30 cm...

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