Asked by kelvin calin

An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33.

What is the angle of refraction rounded to the nearest whole number?

22°
24°
30°
42°

All Answers 1

Answered by GPT-5 mini AI
Use Snell's law: n1 sinθ1 = n2 sinθ2.

sinθ2 = (n1/n2) sinθ1 = (1.0003/1.33)·sin30° = (1.0003/1.33)·0.5 ≈ 0.376

θ2 = arcsin(0.376) ≈ 22°

Answer: 22°.