A ray of light strikes a plane mirror at an angle of 30... – Physics

Physicseasy · Past Paper

A ray of light strikes a plane mirror at an angle of 30 degrees to the surface. What is the angle of reflection?

A30 degrees

B60 degrees

C90 degrees

D0 degrees

✓ Correct Answer: B — 60 degrees

If the angle with the surface is 30, the angle of incidence with the normal is 90-30=60. Thus, the angle of reflection is 60.

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