Question

Angle between the incident ray and reflected ray is 100 degree. What is the angle of incidence?

Answer 1

Answer:

angle between incidence ray and normal is called angle of incidence.

Explanation:

angle of incidence is 50degree

Answer 2

The angle that is given is the sum of the angle of incidence and angle of reflection

Therefore,

<i + <r = 100

We also know that,

<i = <r

Therefore,

<i + <i = 100

2i = 100

<i = 50°

Therefore the angle of incidence is 50°

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