Question

The angel between incident ray and reflected is 70 degree. What will the incident angle be?​

Answer 1

Answer:

Angle of incidence=Angle of refraction

Similarly refracted ray is the angle between the refracted ray and normal. As said they are equal. Therefore, Angle of incident = 70/2 = 35 degrees...

Answer 2

Answer:

as i=r

i+70+r=180

2i+70=180

2i=110

i=55

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