Question

What is 'normal' in the reflection of light from a plane mirror?

Answer 1

Answer:

in reflection of light through plane mirror normal is the ray which is perpendicular to the plane mirror

Answer 2

'Normal' in light reflection:

• A light ray incidence on the surface.
• Ray which falls on the surface is called incident ray.
• Ray which is reflected from the surface is called reflected ray.
• A line drawn perpendicular from the point of incidence is called "Normal".
• Normal is used to divide the incident ray and the reflected ray equally which gives reflected angle and incidence angle.
• Normal plays a major role in defining the reflection of light.