A light ray in air strikes a glass surface with an angle of incidence of 30.0$^{\circ}$.The angle of refraction in the glass is 20.0$^{\circ}$.What is the speed of light in the glass? A) 3.00 $\times$ 10⁸ m/s B) 2.50 $\times$ 10⁸ m/s C) 2.33 $\times$ 10⁸ m/s D) 2.05 $\times$ 10⁸ m/s E) 1.50 $\times$ 10⁸ m/s

Question

Quizplus · Accepted Answer

Using Snell's Law, n1 * sin(θ1) = n2 * sin(θ2), and knowing the speed of light in air is 3.00 * 10^8 m/s, we can calculate the speed of light in glass as 2.05 * 10^8 m/s.

A Light Ray in Air Strikes a Glass Surface with an Angle