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A ray of light is incident at angle I on...

A ray of light is incident at angle I on a surface of a prism of small angle A and emerges normally from the opposite surface. If the refractive index of the material of the prism is `mu`, the angle of incident I 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 ENGLISH-GEOMATRICAL OPTICS -Exercise-1
  1. A ray of monochromatic light is incident on one refracting face of a p...

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  2. A prism having refractive index sqrt2 and refractive angle 30^@ has on...

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  3. A ray of light is incident at angle I on a surface of a prism of small...

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

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

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

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  7. The maximum refractive index of a material, of a prism of apex 90^(@) ...

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  8. A prism having an apex angle 4^(@) and refraction index 1.5 is located...

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

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  14. Two symmetric double convex lenses A and B have same focal length but ...

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

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  16. A lens behaves as a converging lens in air and a diverging lens in wat...

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  17. The sun subtends an angle of (1//2)^(@) on earth. The image of sun is ...

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  18. A lens having focal length f and aperture of diameter d forms an image...

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  19. A thin symmetrical double convex lens of power P is cut into three par...

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  20. In the figure shown, there are two convex lenses L(1) and L(2) having ...

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