a mirror is tilted at an angle of 30 degree to the bench.a ray of light is directed so that it hits the mirror at an angle of 20 degree to the surface of the mirror.what is the angle of reflection?
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the angle of reflection is equal to angle of incidence
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The mirror is tilted at an angle of 30⁰ to the bench.
The ray of light hits the mirror at an angle of 20⁰.
If we draw a normal (90⁰) on the mirror surface, then the incident ray angle will be 90⁰-20⁰= 70⁰. The same is for the angle of reflection. So, the answer is 70⁰. The angle of reflection is 70⁰.
The explained figure is given below:
θi= incident angle
θr= reflected angle
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