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Question #77602

Civil Engineering

Critical angle of electromagnetic radiation takes place if__________________?

Options:

A) Angle of incidence is equal to angle of refraction

B) Angle of incidence is greater than the angle of refraction

C) Angle of incidence is equal to 90°

D) Angle of refraction is equal to 90°

Answer: Critical angle of electromagnetic radiation takes place if Angle of refraction is equal to 90°.

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