A man is 180 cm tall and his eyes are 10 cm below the top of his head. In order to see his entire height right from tow to head, he uses a plane mirror kept at a distance of 1 m from him. The minimum height of the plane mirror required is
A. 180 cm
B. 90 cm
C. 85 cm
D. 170 cm
A. 180 cm
B. 90 cm
C. 85 cm
D. 170 cm
Correct Answer – B
The shortest height of mirror in which the man can see himself full length is half on the height approximately.