A ray of light is incident ona plane mirror at an angle of 30°.What is the angle of reflection?
sharmarohit7702:
The angle of reflection is 60 degrees. (Note that the angle of incidence is not 30 degrees; it is 60 degrees since the angle of incidence is measured between the incident ray and the normal.)
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Answer:
30°
Step-by-step explanation:
Because
angel of incident = angle of reflection
Answered by
1
GIVEN:
An incident ray makes an angle of 30⁰
TO FIND:
Angle of reflection.
SOLUTION:
One of the laws of reflection states that:- Angle of Incidence is always equal to the Angle of Reflection.
I.e. ∠i = ∠r
According to the question, Incident ray = 30⁰
i.e.∠i = 30⁰
Therefore, Angle of reflection is also 30⁰.
So, ∠i = ∠r = 30⁰
ANSWER: ∠r = 30⁰
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