Question

When leaving a fish tank, a ray moving at 31.0 deg in glass (n = 1.50) exits into the air. At what angle does it enter the air?

Answer 1

50.5

Step-by-step explanation:

right on acellus

Answer 2

50.5

Step-by-step explanation:

Using Snell's Law, you can rearrange the equation to solve for the 2nd angle. The most important part of this question is remembering to use the 1.50 n in the numerator and 1.00n in the denominator. The reason for this is because 1.50's degree is already found: 31.0. You're looking for the degree where the ray hits air, which would be the 1.00 n. So, the equation looks like this: Sin^-1 (1.50sin(31)/ 1.00). After solving the equation, you get 50.5 or 50.6 if you round up. I hope this was helpful! :)