The minimum length of a plane mirror to see the entire ful-length image of an object is half of the object's height. suppose ö is the distance between eye and t

The minimum length of a plane mirror to see the entire ful-length image of an object is half of the object's height. Suppose ö is the distance between eye and top of the head of a person of height h. The person will be able to see his entire full-length image with a mirror of height h/2 fixed on the wall (A) 21. when the bottom edge of mirror is kept h/2 above the floor. (B) when the bottom edge of mirror is kept (h+8)/2 above the floor (C) when the bottom edge of mirror is kept (h-6)/2 above the floor. (D) when the centre of the mirror is at the same height as centre of the person.