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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?

Respuesta :

mshahzaib247

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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