Question

The angle between an incident ray and its corresponding reflected ray is 70. The measure of the angle of incidence is

Answer 1

Answer:

Explanation:

According to the law of reflection

Angle of incidence=Angle of refraction

In the question the angle between the incident ray and refracted ray is 70 degrees. Angle of incidence is the angle between the incident ray and normal. 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.

Angle of refraction= 35 degrees.

Answer 2

Answer:

70°

Explanation:

Given,

Angle of reflection = 70°

To find : Angle of incidence = ?

By Laws of Reflection,

Angle of incidence ( ∠i ) = Angle of reflection ( ∠r )

Therefore,

∠i = ∠r = 70°

Hence,

The measure of the angle of incidence ( ∠i ) is 70°.