Question

What is the angle of refraction if a ray leaves a material with an index of 1.66, traveling into air, and the angle of incidence is 37 deg?

Answer 1

`r = 21.26^0`

Step-by-step 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

`\mu = (sin i)/(sin r)`

`1.66 = (sin 37^0)/(sin r)`

`sin r = (sin 37^0)/(1.66)`

`sin r = 0.362`

`r = 21.26^0`

hence. the angle of refraction is equal to
`r = 21.26^0`