1.

A man is 160 m tall and his eyes are 10 cm below the top of his head. In order to see this entire height right from top to head, he uses a plane mirror kept at a distance 1 m from him. The minimum length of the plane mirror is

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A man is 160 m tall and his eyes are 10 cm below the top of his head. In order to see this entire height right from top to head, he uses a plane mirror kept at a distance 1 m from him. The minimum length of the plane mirror is



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