a light ray is falling on a surface with an angle of 30 degree. find out the angle of incidence and angle of reflection
Answers
According to first law of reflection incident and reflected angles are equal. So, reflected angle will be 30 degrees. Reflected angle and angle B together make up the angle between normal and the surface that is 90 degrees. So, Angle b = (90 - reflected angle), which is (90-30) = 60 degree.
Answer:
Explanation:
The Reflected ray (R)bounces off of the mirror at the same angle the Incident ray (I) comes in.
The Normal (N) is perpendicular (90 degrees) to the surface of the mirror at the point of incidence.
The angle of Incidence θi is the angle formed between the Incident ray (I) and the normal (N).
In your problem, the angle between I and the mirror is 30 degrees, which means that your angle of incidence θi is 60 degrees.
The angle of incidence and the angle of reflection are equal.
θi = θr
60 degrees = θr
Your angle of reflection is 60 degrees.