Find the number of images formed by two mutually perpendicular mirrors.

Explanation

Hence ,`n=(360)/(theta)=(360)/(90)=4`
`:. n`is an even number

Thus ,number of image formed=`n-1=3`.All these three images lie on a circle with centre at`C`(The point of intersection of mirrors `M_(1),M_(2))` and whose radius is equal to the distance between `C`and object.