Question

Give the condition under which the reflected ray goes along the same path of the incident ray in mirror.


Plzzz answer correctly

Answer 1

Answer:

if incident tay fall perpendicularly ie at the right angle on the surface then the reflected ray goes along the same path.

for example a ray of light moving along the principal axis comes back along the same path

Answer 2

The condition under which the reflected ray goes along with the same path of the incident ray in the mirror,is as follows -

• The basic condition is that the incidence angle should be 90°.

• According,to the basic law of light reflection through a plane mirror,the angle of incidence is equal to the angle of reflection.

• Now,the light rays travel in straight line and if we want to get the movement of reflected ray in the same direction of the incident ray,then we need to make those rays travel through one single straight line.

• And,this straight line formation is only possible when we apply the incident ray at an angle of 90° on the mirror.