A film of oil, with a index of refraction of 1.48 and athickness of 1.50cm, floa

Question

A film of oil, with a index of refraction of 1.48 and athickness of 1.50cm, floats on a pool of water. if you assume thatthe angle of incidence at the air-oil interface can be varied form0 degrees and 90 degrees. (A) what is the maximum possible valuefor , the angle of refraction in the water? (B) if an oilwith a larger index of refarction is used, does your answer to part(A) increase or decrease? A film of oil, with a index of refraction of 1.48 and athickness of 1.50cm, floats on a pool of water. if you assume thatthe angle of incidence at the air-oil interface can be varied form0 degrees and 90 degrees. (A) what is the maximum possible valuefor , the angle of refraction in the water? (B) if an oilwith a larger index of refarction is used, does your answer to part(A) increase or decrease?

Explanation / Answer

Given : Refractive index of oil ( n1 ) = 1.48 Refractive indix of water ( n2 ) = 1.33 Thickness ( t ) = 1.50 cm Angle of incidence ( 1 ) =90o Angle of reflection ( 2 ) =? From Snell's law     n1 sin1 = n2sin2    1 = sin-1 (n2/n1 sin2 )          =------    Solve it I hope it helps you Angle of reflection ( 2 ) =? From Snell's law     n1 sin1 = n2sin2    1 = sin-1 (n2/n1 sin2 )          =------    Solve it I hope it helps you

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