Question
Which of the following is necessary for total internal reflection to occur?
Group of answer choices
the angle of incidence must be equal to the critical angle
the angle of incidence must be smaller than the critical angle
the angle of incidence must be exactly half the critical angle
the angle of incidence must be greater than the critical angle
Group of answer choices
the angle of incidence must be equal to the critical angle
the angle of incidence must be smaller than the critical angle
the angle of incidence must be exactly half the critical angle
the angle of incidence must be greater than the critical angle
Answers
GPT-4o mini
Total internal reflection occurs when the angle of incidence is greater than the critical angle. Therefore, the correct choice is:
**the angle of incidence must be greater than the critical angle.**
**the angle of incidence must be greater than the critical angle.**
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