# Fraction of light that escapes!

Classical Mechanics Level 4

A point source of light is placed a distance '$$h$$' below the surface of water. What is the fraction of light energy that escapes directly from the water surface? Give your answer to 3 decimal places.

Assume $$\mu_{\text{water}} = \frac{4}{3}$$ and ignore any absorption or scattering of light.

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