The angle between an incident ray and the plane mirror is 30°. The total angle between the incident ray and the reflected ray will be:


The angle between the incident ray and the mirror is 30 degrees.

Angle of incidence= angle of reflection.


90 degrees is going directly into the mirror.


So, 90-30=60 degrees.


The total angle between the incident ray and the reflected ray will be 120 degree.

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