Light Test - 31...

Image seen by a periscope is:

The incident ray and the reflected ray from a mirror is mutually perpendicular to each other. Find the angle of incidence.

How many images are formed for a point object kept in between two plane mirrors $$M_1$$ and $$M_2$$, at right angles to each other ? 

A light ray is incident normally on a plane mirror.

How many plane mirrors are used in a periscope ? How are they arranged relative to each other ?

State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at $$(a) 90^{\circ}$$ and $$(b) 60^{\circ}$$.

Two plane mirrors are placed making an angle $$\theta $$ in between them. What is the expression for the number of images formed of an object placed in between the mirrors?

The final image formed in a periscope is:

An object is placed
$$(i)$$ Asymmetrically 
$$(ii)$$ Symmetrically, between two plane mirrors inclined at an angle of $$50^{\circ}$$. Find the number of images formed.

Rectilinear propagation of light is :