If a ray of light falls along the normal of a plane mirror, then the light ray will reflect back at 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 D
90 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 90 degrees, then it will reflect back at the same angle i.e 90 degrees.

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Similar questions

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

In which direction will a light falling along the normal to a mirror be reflected

Could you please check my answer

Ans: as the incident ray is zero degree the reflected ray will also be reflected at the same angle which is at zero degree along the normal

80

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