A ray of light strikes a thick sheet of glass (n = 1.5)at an angle of 20° with the normal.Find the angle of the refracted ray within the glass with respect to the normal.

Question

Quizplus · Accepted Answer

Using Snell's Law, n1*sin(theta1) = n2*sin(theta2), where n1 = 1 (air), theta1 = 20°, and n2 = 1.5 (glass). Solving for theta2 gives sin(theta2) = sin(20°)/1.5, which results in theta2 ≈ 13°.

A Ray of Light Strikes a Thick Sheet of Glass