Try it on paper first. A hint, the key idea and the worked solution are here when you need them.
Light goes from air to water of refractive index , and then to glass of refractive index . Find the angle of incidence at which the reflected light is completely plane polarised, and the angle of refraction at that angle, for water. Then do the same for the glass.
Brewster's law for light that goes from air to a material of index is . At the reflected light is completely plane polarised, and . Small particles scatter light in proportion to . The critical angle has .
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Water. , so . The angle of refraction is .
Step 2. Glass. , so . The angle of refraction is .
Answer: and for water; and for glass.
Check. Snell's law at Brewster's angle in the glass: and . They agree.
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