If a ray of light falls along the normal of a plane mirror, then the light ray will reflect back at an angle of:

30 degrees

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180 degrees

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0 degrees

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90 degrees

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Solution

The correct option is C
0 degrees

According to the first law of reflection, the angle of incidence should be equal to the angle of reflection, so if a light ray falls at an angle of 0 degree, then it will reflect back at the same angle i.e. along the normal.

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If a ray of light falls along the normal of a plane mirror, then the light ray will reflect back at an angle of:

The correct option is C 0 degrees According to the first law of reflection, the angle of incidence should be equal to the angle of reflection, so if a light ray falls at an angle of 0 degree, then it will reflect back at the same angle i.e. along the normal.

The correct option is C
0 degrees

According to the first law of reflection, the angle of incidence should be equal to the angle of reflection, so if a light ray falls at an angle of 0 degree, then it will reflect back at the same angle i.e. along the normal.