A Tank Holds a Layer of Oil,of Thickness T_o =

question 8

Multiple Choice

A tank holds a layer of oil,of thickness T_o = 1.65 m,that floats on a layer of syrup of thickness T_s = 0.830 m,as shown in the figure.Both liquids are clear and do not mix together.A light ray,originating at the bottom of the tank at point P,crosses the oil-syrup interface at a point 0.900 m from the axis.The ray continues and arrives at the oil-air interface,2.00 m to the right of P and at the critical angle.What is the index of refraction of the syrup?

• A)1.36
• B)1.25
• C)1.94
• D)1.75
• E)1.54

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