1.

Twobeams of red and violet colours 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

Answer»

`30^(@)` for both the colours
greater for the violet COLOUR
greater for the violet colour
EQUAL but not `30^(@)` for both the colours

Solution :For any prism , `r_(1) = r_(2) = A`
In the POSITION of minimum DEVIATION for any wavelenght,
`r_(1) = r_(2) = (A)/(2) = (60^(@))/(2) = 30^(@)`


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