The angle of incidence for a ray incident perpendicular to the mirror is ___.

45°

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0°

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180°

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90°

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Solution

The correct option is B
0°

The angle of incidence is defined as the angle between the incident ray and the normal at the point of incidence. The normal is always perpendicular to the surface. So, if the incident ray is also perpendicular, then the angle of incidence is 0°.

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The angle of incidence for a ray incident perpendicular to the mirror is ___.

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

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