Light passes from air into water at an angle of 40.0 to the normal. what is the angle of refraction? show all work.

Angle of refraction = 28.9 degrees

Explanation:

We can use Snell's law to solve this problem.

where the subindex 1 refers to one media (let's say air in our case), and the subindex 2 refers to the other media (water in our case)

and are the respective indeces of refraction for the two media.

Recall that the index of refraction for air is 1, while the index of refraction for water is around 1.333.

We know the angle if incident light in air; 40 degrees, so we need to solve for first for the in the equation, and then find what angle is by using the arc-sin function:

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