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Two beam of red and violet colors are ma...

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

A

`30^(@)` for both the colors

B

greater for the violet color

C

greater for the red color

D

equal but not `30^(@)` for both the colors

Text Solution

Verified by Experts

The correct Answer is:
A
The minimum deviation condition
`r_(1) = r_(2) = ( A)/(2)= (60^(@))/(2) = 30^(@) , ( :' A = 60^(@))`
Also the angle of refraction does not depend on the color of beams of light.
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