If the refracting angle of a prism is 60 o and minimum deviation is 30 o , the angle of incidence is

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Question: Answered & Verified by Expert

If the refracting angle of a prism is

60^{o}

and minimum deviation is

30^{o}

, the angle of incidence is

PhysicsRay OpticsNEET

Options:

A $30^{o}$
B $45^{o}$
C $60^{o}$
D $90^{o}$

Solution:

1410 Upvotes Verified Answer

The correct answer is:

45^{o}

We know that angle of incidence is

i = \frac{δ_{m} + A}{2}

i = \frac{30^{o} + 60^{o}}{2}

i = 45^{o}

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