A) \[30{}^\circ \] for both the colors
B) greater for the violet color
C) greater for the red color
D) equal but not \[30{}^\circ \] for both the colors.
Correct Answer: A
Solution :
[a] For minimum deviation the ray in the prism is parallel to the base of the prism. This condition does not depend on the color (or wave length) of incident radiation. So in both the cases, by geometry, \[r=30{}^\circ .\]So [a] is correct option.You need to login to perform this action.
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