Question

there is a _________ relationship between the number of images and angle between the Mirrors

Answer 1

HEY MATE...
the relationship between the number of images and angle between the mirrors are ...
If image decreases the mirror angle also decreases
.
As they were inversely proportional to each other.

Answer 2

The no. of images formed when 2 mirrors are placed at an angle x degrees to each other is given by the formula ((360/x)-1).

Let x = 90 degrees, no of images formed is (360/90) - 1= 4–1=3.