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When a light beam is reflected, the angle of...Select one:a. incidence is equal to the angle of reflection.b. refraction equals the angle of reflection.c. reflection is greater than the angle of incidence.d. reflection is smaller than the angle of incidence.

Sagot :

Given:

A light beam is reflected from a surface.

To find:

How incidence angle is related to the angle of reflection.

Explanation:

Option B is incorrect because the ray is reflected from the surface. Thus the ray will not refract.

According to a law of reflection, on reflection from a surface, the angle that incident light makes with angle is equal to the angle that reflected light makes with the normal. Thus for the reflection of light, the angle of incidence is equal to the angle of reflection. Thus options c and d are incorrect and a is the correct option.

Conclusion:

The correct option is option a: angle of incidence is equal to the angle of reflection.