Question

If an incident beam (in air) strikes a surface with an angle of 32 degrees (with respect to the normal) and refracts in water, what is the angle of refraction?​

Answer 1

Answer:

Explanation:

To find the angle of refraction, use the Snell's law equation to determine the angle.

n1sin(θ1)=n2sin(θ2)

Find the index of refraction for water.

n2=nwater=1.33

Find the index of refraction for air.

n1=nair=1

Solve for θ2.

(1)sin(10^{\textup o})=(1.33)sin(\theta_2)

\theta_2=sin^{-1}({\frac{sin(10^{\textup o})}{1.33}})=7.5^{\textup o}