A wave is traveling with a velocity of 350 m/s and strikes a surface at an angle of 30.0 degrees with the normal to the surface. The wave splits into a reflected part and a refracted part. The refracted wave travels with a velocity of 300 m/s. What is the angle of refraction?
A) 50.4 degrees
B) 45.2 degrees
C) 40.4 degrees
D) 38.4 degrees
E) 25.4 degrees

Question

Quizplus · Accepted Answer

Using Snell's Law, n1 * sin(theta1) = n2 * sin(theta2), where n1 and n2 are the indices of refraction. Since n = c/v, we have (350/300) * sin(30) = sin(theta2). Solving for theta2 gives approximately 50.4 degrees.

A Wave Is Traveling with a Velocity of 350 M/s