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A ray of light is incident at small angl...

A ray of light is incident at small angle I on the surface of prism of small angle A and emerges normally from the oppsite surface. If the refractive index of the material of the prism is mu, the angle of incidence is nearly equal to

A

`A//mu`

B

`A//(2mu)`

C

`muA`

D

`muA//2`

Text Solution

Verified by Experts

The correct Answer is:
C

(sini)/(sinA)=mu` since `i` and `A` are small angle. `(i)/(A)=mu`
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
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  4. A prism of refractive index sqrt2 has refractive angle 60^@. In the or...

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  9. There is a small black dot at the centre C of a solid glass sphere of ...

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  10. The image for the converging beam after refraction through the curved ...

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  11. A plano-concave lens is placed on a paper on which a flower is drawn. ...

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  12. A beam of diameter 'd' is incident on a glass hemisphere as shown. If ...

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  15. When a lens of power P (in air) made of material of refractive index m...

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