Question

A student of height 1.9 m can see his full image in a plane mirror fixed on a wall his eyes are 18.5 m from the floor level what is the minimum level of a plane mirror required to get full image of the student

Answer 1

How can "A student of height 1.9 m" have his eyes 18.5m from the floor level?

And what do you mean by " minimum level of a plane mirror"? How high the bottom is above the floor?

Please tidy up the language so we know just what you are saying, and what you are asking.