(a) At what angle of incidence will the light reflected from water be completely polarized ? (b) Does this angle depend on the wavelength of the light ?

Explanation

To solve the problem, we will break it down into two parts as given in the question.

### Part (a): Finding the Angle of Incidence for Complete Polarization

1. **Understanding the Concept**: The angle of incidence at which light is completely polarized upon reflection is known as the angle of polarization (Ip). This angle can be calculated using the formula:
\[ \tan(I_p) = \frac{\mu_1}{\mu_2} \]
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