user
A physics student is asked to determine the angle of incidence for a light ray that refracts at an angle of 30 degrees when passing from air into water, given that the refractive index of water is 1.33 with respect to air. What is the angle of incidence of the light ray?
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

The answer is 42.

<|end_of_solution|>