How many images of an object will be formed when the object is placed between two plane mirrors which are inclined at the following angles to one another?
(a) 120°
(b) 45°
(c) 180°
(d) 60°
(e) 90°
The formula to calculate the no. of images of an object placed between 2 plane mirrors- (360/θ)−1; where theta is the angle of inclination.
a- 2 (360/120)-1= 3-1 =2
b- 7 (360/45)-1= 8-1 =7
c- 1 (360/180)-1= 2-1 =1
d- 5 (360/60)-1= 6-1 =5
e- 3 (360/90)-1= 4-1 =3