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Two beams of red and violet colours are ...

Two beams of red and violet colours are made to pass separately through a prism (angle of the prism is ` 60degree`). In the position of minimum deviation, the angle of refraction will be

A

`30^@` for both the colours

B

greater for the violet colour

C

grater for the red colour

D

equal but not `30^@` for both the colours

Text Solution

Verified by Experts

The correct Answer is:
A

In case of minimum deviation, ray inside the prism is parallel to the base.
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CP SINGH-REFRACTION OF LIGHT BY PLANE SURFACES-Exercises
  1. A prism of angle 60^@ deviates a ray of light through 32^@ for two ang...

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  2. The maximum value of index of refraction of a material of a prism whic...

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  3. Two beams of red and violet colours are made to pass separately throug...

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  4. When a glass prism of refracting angle 60^(@) is immersed in a liquid ...

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  5. Angle of prism is A and its one surface is silvered. Light rays fallin...

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  6. Three prisms 1, 2 and 3 have the prism angle A = 60^(@), but their ref...

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  7. A ray of light is incident at small angle I on the surface of prism of...

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  8. A light ray is incident on a prism in minimum deviation position and s...

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  9. An isosceles prism of angle 120degree has a refractive index 1.44. Two...

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  10. Two parallel light rays are incident at one surface of a prism of refr...

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  11. P is small angled prism of angle 3^(@) made of a material of refractiv...

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  12. Light is incident normally on face AB of a prism as shown in Figure. A...

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  13. A beam of white light is incident on a hollow prism of glass. Then

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  14. For a small angled prism, angle of prism A of minimum deviation(delta)...

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  15. The graph between angle of deviation (delta) and angle of incidence (i...

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  16. A narrow beam of white light enters slab having parallel faces.

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  17. A medium is said to be dispersive if

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  18. Dispersion can take place for

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  19. The angular dispersion produced by a prism

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  20. Dispersive power depends upon

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