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593.


Problem 43.19 (RHK)


A layer of water 20 mm thick floats on layer of carbon tetrachloride 41 mm thick. We have to estimate the apparent depth of the water surface from the bottom of the layer of the carbon tetrachloride, when viewed at near normal incidence.


Solution:           Click For PDF Version

We will use the result of Problem 592 that the apparent depth of a medium of refractive index n when viewed at near normal incidence is

.

Applying this result to the problem, we note that