A man 160,cm high stands in front of a plane | vedclass

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(C) To see the full-length image of an object of height $H$ in a plane mirror,the minimum length of the mirror required is $H/2$.This is because the l

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$80$

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(C) To see the full-length image of an object of height $H$ in a plane mirror,the minimum length of the mirror required is $H/2$.This is because the light rays from the top of the head and the feet must reflect off the mirror to reach the eyes.Given the height of the man $H = 160\,cm$.The minimum length of the mirror $L = H/2 = 160/2 = 80\,cm$.The height of the eyes does not affect the minimum length of the mirror required to see the full image,provided the mirror is positioned correctly.

$A$ man $160\,cm$ high stands in front of a plane mirror. His eyes are at a height of $150\,cm$ from the floor. The minimum length of the plane mirror required for him to see his full-length image is......$cm$.

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