Question

please help answer these questions

Answer 1

$n = 360 \div angle \: between \: the \: two \: plane \: mirrors$
is the formula you can use to find the number of Images formed

where 'n' is the number of images formed.

So, applying the formula
a. 360/60 = 6 images
b. 360/90 = 4 images
c. 360/180 = 2 images