Answer:
[tex]r = 21.26^0 [/tex]
Explanation:
given,
light is incident on the plane surface at (i) = 37°
angle of refraction (r) = ?
μ is the refractive index of the material
μ = 1.66
using Snell's law
[tex]\mu = \dfrac{sin i}{sin r}[/tex]
[tex]1.66 = \dfrac{sin 37^0}{sin r}[/tex]
[tex]sin r = \dfrac{sin 37^0}{1.66}[/tex]
[tex]sin r = 0.362[/tex]
[tex]r = 21.26^0 [/tex]
hence. the angle of refraction is equal to [tex]r = 21.26^0 [/tex]
