Question

If the angle of incidence + angle of reflection = 60 degrees, then what will be the angle of incidence?

Answer 1

Given,
angle of incidence + angle of reflection = 60°
from law of reflection we know that,
angle of incidence = angle of reflection
=> angle of incidence + angle of reflection = 60°
=>angle of incidence + angle of incidence = 60°
=> 2 ( angle of incidence ) = 60°
=> angle of incidence = 30°