Q.
A layer of benzene (μ1=1.5)6cm deep floats on water (μ2=1.33)4cm deep. When viewed vertically through air the apparent distance (in cm ) of the bottom of the vessel below the surface of the benzene will be ?
810
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Ray Optics and Optical Instruments
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Answer: 7.00
Solution:
Image of bottom after refraction at benzene water surface is formed at =(4/34)(1.5) =4.5cm below benzene water surface Now for refraction at benzene air surface, this acts as object and final image is formed at =(1.510.5)(1)=7cm below benzene-air surface.