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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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Knowledge Check

  • 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
    `30degree` for both the colours
    B
    greater for the violet colour
    C
    greater for the red colour
    D
    equal but not `30degree` for both the colours

  • Two beams of red and violet colours are made to pass separately through a prism of A = 60^(@) In the minimum deviation position, the angle of refraction inside the prism will be

    A
    greater for red colour
    B
    equal but not `30^(@)` for both the colours.
    C
    greater than violet colour
    D
    `30^(@)` for both the colours.

  • If the angle of prism is 60^(@) and the angle of minimum deviation is 40^(@) , the angle of refraction will be

    A
    `30^(@)`
    B
    `60^(@)`
    C
    `100^(@)`
    D
    `120^(@)`

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