Two beams 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
A. 30° for both the colours
B. greater for the violet colour
C. greater for the violet colour
D. equal but not 30° for both the colours
Answer:A
Two beams 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
A. 30° for both the colours B. greater for the violet colour C. greater for the violet colour D. equal but not 30° for both the colours