To get three images of a single object, one should have two plane mirrors at an angle of

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Question: Answered & Verified by Expert

To get three images of a single object, one should have two plane mirrors at an angle of

PhysicsRay OpticsNEET

Options:

A $60 °$
B $90 °$
C $120 °$
D $30 °$

Solution:

2975 Upvotes Verified Answer

The correct answer is:

90 °

n = \frac{360^{o}}{θ^{o}} - 1

∴

3 = \frac{360^{o}}{θ^{o}} - 1 \Rightarrow 4 θ^{o} = 360^{o} \Rightarrow θ^{o} = 90^{o}

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