A RAY OF LIGHT STRIKES A PLANE MIRROR AT AN ANGLE OF 20 DEG. WITH THEMIRROR. WHAT IS THE ANGLE OF INCIDENCE AND ANGLE OF REFLECTION? BY WHAT ANGLE THE INCIDENT RAY HAS SUFFERED DEVIATION?
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18
The angle of incidence is equal to the angle of reflection so the angle of incidence and the angle of reflection is 20 degrees.
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29
angle of incidence is the angle with which ray of light strikes the mirror,which is given 20⁰.
according to snells law:
∠incidence=∠reflection
hence angle of incidence=20⁰
angle of reflection=20⁰
suffered angle of deviation = 20⁰+20⁰=40⁰
according to snells law:
∠incidence=∠reflection
hence angle of incidence=20⁰
angle of reflection=20⁰
suffered angle of deviation = 20⁰+20⁰=40⁰
vishagh:
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