Ni*sinAi = Nr*sinAr
That is Snell's law in an easy-to-remember form.
The refractive index N is NOT measured in degrees. It is a dimensionless ratio.
Ni is the index on the air side of the prism, 1.000
Nr is the refractive index of the glass, 1.52
Ai = 51.1 degrees
Solve for Ar, the angle of refrfaction.
sin Ar = (sin 51.1)/1.52
A ray of light is incident at an angle of 51.1� degrees
on the surface of a piece of crown glass whose
index of refraction is 1.52 degrees.
What is the angle of refraction?
Answer in units of �.
2 answers
0.51