Question

An object is placed between two plane mirror inclieded at 60° 45° 72°and 120° to each other how many images you execpt to see

Answer 1

Explanation:

$1) 60 degrees$

$=\frac{360}{x}-1$

$=\frac{360}{60}-1$

$=6-1$

$=5 images$

$2) 45 degrees$

$=\frac{360}{x}-1$

$=\frac{360}{45}-1$

$=8-1$

$=7 images$

$3) 72 degrees$

$=\frac{360}{x}-1$

$=\frac{360}{72}-1$

$=5-1$

$=4 images$

$4) 120 degrees$

$=\frac{360}{x}-1$

$=\frac{360}{120}-1$

$=3-1$

$=2 images$

Note that as the angles are decreasing, the number of images are increasing and as the angles are increasing, the number of images are decreasing.