At what minimum distance must it strike the air-water interface, relative to the spot on the surface directly above it, in order that the li

Question

At what minimum distance must it strike the air-water interface, relative to the spot on the surface directly above it, in order that the light does not exit the water?

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Adela 4 years 2021-08-28T07:41:26+00:00 1 Answers 55 views 0

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  1. thienhuong
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    2021-08-28T07:42:55+00:00
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    Answer:

    Where Angle of Incidence is greater than critical angle i.e., 48.5 degrees for water-air refraction…

    Explanation:

    For a light beam to does not leave the second medium i.e., water, the angle of incidence must be greater than that of a critical angle. The total internal reflection then occurs and the light beam doesn’t exit the medium as a result…

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