Question

Calculate the index of refraction nr of the indicated refractive medium given the following assumptions:

Answer 1

Given:

`\begin{gathered} n_i=1.00 \\ \theta_i=60\degree \\ \theta_r=18.5\degree \end{gathered}`

Required:

To find the value of nr.

Step-by-step explanation:

The Snell's law is

`\begin{gathered} n_i\sin\theta_i=n_r\sin\theta_r \\ \\ n_r=(n_i\sin\theta i)/(\sin\theta_r) \\ \\ =(1.00*\sin60)/(\sin18.5) \\ \\ =(1*0.8660)/(0.3173) \\ \\ =2.7292 \\ \\ n_r=2.73 \end{gathered}`