NEET Physics Optical Instruments MCQ Question
A ray of light is incident on a prism with an angle of incidence . The refracted ray inside the prism becomes parallel to its base for a minimum deviation . If the angle of the prism is , which equation correctly relates these angles?
2r = A
D_m = 2i - A
i = (A + D_m)/2
n = sin[(A + D_m)/2] / sin[A/2]
Correct Answer
Detailed Explanation
According to the context, at minimum deviation , is given by .
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