Question

THE HEIGHT OF A PERSON IS 170 CM. HOW LONG WILL THE PLANE MIRROR IS REQUIRED FOR HIM TO SEE HIS FULL IMAGE ?

Answer 1

Minimum length of a mirror required = (Height of Person)/2 = 170/2 = 85 cm

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Answer 2

The length of mirror must be 85 cm.

Explanation:

Given that the height of the person is 170 cm. We need to find the length of the plane mirror for him to see his full image. The length of the mirror required is always equal to the half of the height of person. So, the length of mirror must be (170/2) or 85 cm.

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Plane mirror

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