the refractive index (n) for water is ... 4/3
... it is 1 for air
(n air) * sin(Θi) = (n water) * sin(Θr) ... this is Snell's law
A narrow ray of yellow light from glowing sodium (λ0 = 589 nm) traveling in air strikes a smooth surface of water at an angle of θi = 34.9°. Determine the angle of refraction θr.
1 answer