a ray of li light strikes the mirror at an angle of 20 what is angle of reflection
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Explanation:
The ray of light strikes the mirror at an angle of 20 degree,it means it will make an angle of 70 degree (90-20) with the normal. and also from the laws of reflection from mirror,we know that the angle of reflection is always equal to the angle of incidence.
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GIVEN:
- Angle of Incidence (i) = 20°
TO FIND:
- Angle of Reflection.
SOLUTION:
=> Angle of Reflection (r) = 90° - Angle of Incidence
= 90° - 20°
= 70°
Therefore, The Angle of Reflection is 70°.
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