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Question
If light falls perpendicularly on a plane mirror, what will be the angle of reflection?
If light falls perpendicularly on a plane mirror, what will be the angle of reflection?
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Solution
The correct option is D 0°
From the first law of reflection, the angle of reflection is always equal to the angle of incidence.
We know that the angle of incidence is the angle between a ray incident on a surface and the surface normal or the line perpendicular to the surface at the point of incidence.
Given,
Incidence angle = 0°
Therefore, angle of reflection is 0°.
From the first law of reflection, the angle of reflection is always equal to the angle of incidence.
We know that the angle of incidence is the angle between a ray incident on a surface and the surface normal or the line perpendicular to the surface at the point of incidence.
Given,
Incidence angle = 0°
Therefore, angle of reflection is 0°.
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