What should be the angle between two plane mirrors to get five images of a point object,placed between the two mirrors.

$\therefore$ If N is even, number of image $=N-1.$ 

If N is odd and object is placed symmetrical, number of image $=N-1.$

If N is odd and object is placed unsymmetrical, number of image = N.

$\text{ For }\theta ={60}^{\circ }$

N = 6

$\text{ Number of range }=6-1=5$