A ray of light is incident on a prism with an angle of incidence $ i $. The refracted ray inside the prism becomes parallel to its base for a minimum deviation $ D_m $. If the angle of the prism i

Question

A ray of light is incident on a prism with an angle of incidence $i$ . The refracted ray inside the prism becomes parallel to its base for a minimum deviation $D_m$ . If the angle of the prism is $A$ , which equation correctly relates these angles?

A

2r = A

B

D_m = 2i - A

C

i = (A + D_m)/2

D

n = sin[(A + D_m)/2] / sin[A/2]

Accepted Answer

i = (A + D_m)/2

Answer

2r = A

Answer

D_m = 2i - A

Answer

n = sin[(A + D_m)/2] / sin[A/2]

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