Question

A man 180 cm high stands in front of a plane mirror. His eyes are at a height of 172 cm from the floor. Then to see his full image for minimum length of mirror, the lower end of the mirror should be placed at a height of? ​

Answer 1

Answer:

Height of the man = 180/2 = 90

Position of the mirror = 172/2 = 86

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Answer 2

Therefore, the lower end of the mirror should be placed at the height of 90 cm [Final ans].

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