Q. A layer of benzene deep floats on water deep. When viewed vertically through air the apparent distance (in ) of the bottom of the vessel below the surface of the benzene will be ?

 810  211 Ray Optics and Optical Instruments Report Error

Answer: 7.00

Solution:

image
Image of bottom after refraction at benzene water surface is formed at

below benzene water surface Now for refraction at benzene air surface, this acts as object and final image is formed at
below benzene-air surface.