Question

A boy 1.5 m tall with his eye level at 1.38 stands before a mirror required to view the complete image of boy is

Answer 1

Answer:

Rays from foot can enter eye after reflection at M2, whose height from ground is 1.382=0.69m. =0.75m. Minimum length of the mirror is thus always half of the length to be seen irrespective of eye level.

Explanation:

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