A thick layer of oil is floating on the surface of water in atank. A beam of lig

Question

A thick layer of oil is floating on the surface of water in atank. A beam of light traveling in the oil is incident on the waterinterface at an angle of 30.0 degrees from the normal. Therefracted beam travels in the water at an angle of 45.0degrees from the normal. What is the refractive index of theoil? A thick layer of oil is floating on the surface of water in atank. A beam of light traveling in the oil is incident on the waterinterface at an angle of 30.0 degrees from the normal. Therefracted beam travels in the water at an angle of 45.0degrees from the normal. What is the refractive index of theoil? What is the refractive index of theoil?

Explanation / Answer

A thick layer of oil is incident on the water with anangle 1 = 30.00                       refractedbeam travels in water with an angle 2 = 45.00               N1sin1 = N2sin  2          refractive index of water is N2 = 1.33             N1 sin( 30) = 1.33 sin ( 45 )               N1   = 1.88 ( refractive index of oil)

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