What is the angle of incidence
if at and angle of a to its
incident ray?
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Answer:According to the law of reflection, the angle of incidence is equal to the angle of refraction.
That is, ∠i=∠r. Let it be x.
In this case, the difference between the angle of incidence and angle of refraction is 90 degrees.
Given, ∠i+∠r = 90 degrees
or, x+x=90
0
or, x=45
0
Hence, the angle of incidence is 45
0
Explanation:
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