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29 October, 03:21

What is a necessary condition for total internal reflection in a medium?

A. when the angle of incidence is equal to the critical angle

B. when the angle of incidence is greater than the critical angle

C. when the angle of refraction is equal to the critical angle

D. when the angle of reflection is less than the critical angle

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Answers (1)
  1. 29 October, 03:31
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    The correct answer is B.
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