If a man stands symmetrically in front of the two mirrors which are placed side by side at an angle

Question

If a man stands symmetrically in front of the two mirrors which are placed side by side at an angle of 72°. Find the number of image(s) formed.

Answer 1

If a man stands symmetrically in front of the two mirrors which are placed side by side at an angle of 72°. Find the number of image(s) formed.

Explanation

For two mirrors at an angle θ, the number of images is (360° ÷ θ) − 1. This works when 360° ÷ θ is a whole number, as it is here.

360 ÷ 72 = 5, so images = 5 − 1 = 4.

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