If n_water = 1.33, what is the angle of refraction for the ray shown?

Question

Quizplus · Accepted Answer

Using Snell's Law:
n1sin(theta1) = n2sin(theta2)
where n1 = refractive index of air (approx. 1)
n2 = refractive index of water (given as 1.33)
theta1 = angle of incidence (given as 30 degrees)

Solving for theta2:
theta2 = arcsin((n1/n2)sin(theta1))
theta2 = arcsin((1/1.33)sin(30))
theta2 ≈ 42 degrees (rounded to nearest degree)

Therefore, the angle of refraction is approximately 42 degrees, so the correct answer is choice D.

If Nwater = 1 °\degree° B) 22 °\degree° C) 40 °\degree° D) 42 °\degree°

If N_water = 1 $\degree$ B) 22 $\degree$ C) 40 $\degree$ D) 42 $\degree$