Question

explain the following term. Normal along up plane mirror.​

Answer 1

Answer

Normal is the perpendicular imaginary line which is made on the plane mirror to find out the angle of incidence which is the angle made by normal and incident ray ( a ray that falls on the mirror) and angle of reflection which is made by the normal and reflected ray( a ray that bounces back)

Explanation:

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Answer 2

Answer:

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).