Question

What is the minimum length of a plane mirror in which we can see your whole body?

Answer 1

Its according to ur height how much it is but as i know it should be 5 feets..

Answer 2

Answer:

The minimum size (vertical length) of the plane mirror should be equal to half the height of the man so that a man is able to see his full image. A concave lens of focal length 15 cm forms an image 10 cm from the lens.

Explanation:

In other words, to view an image of yourself in a plane mirror, you will need an amount of mirror equal to one-half of your height. A 6-foot tall man needs 3-feet of mirror (positioned properly) in order to view his entire image.