A light ray in air hits piece of quartz at a 39.0 deg angle. Inside the quartz, the light slows down to 2.06*10^8 m/s. At what angle does the light travel in the quarts? (Hint: find n.)
(Unit=deg)

Angle of light at which it will travel in the quartz is given as

Explanation:

As we know that the refractive index of a medium is the ratio of speed of light in air and speed of light in the medium

So we will have

here we have

now by Snell's law we have

mistakes are ok

no

sodium is solid at rt