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Question Practice

When light travels from water (n=1.33) to air (n=1.0), what must the angle of incidence be to achieve total internal reflection?

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MCQ_SA
CBSE
Class 12
Physics
Physics Part - II
RAY OPTICS AND OPTICAL INSTRUMENTS
Question Bank

When light travels from water ...

Single Answer MCQ
Q-00085880

When light travels from water (n=1.33) to air (n=1.0), what must the angle of incidence be to achieve total internal reflection?

1

Less than the critical angle of 48.8°

2

Equal to 48.8°

3

Greater than the critical angle of 48.8°

4

Any angle

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