An incident ray strikes a boundary at a 72.5-degree angle, resulting in an angle of refraction of 39.6 degrees. the index of refraction of the first medium is 1.0003.

what is medium 1?

what is medium 2?

medium 1 = air

medium 2 = Lucite

Explanation:

Part a)

here the refractive index of first medium is 1.0003

so from the given table this is the refractive index of air

so medium 1 is AIR

Part b)

As per law of refraction we know that

here we know that

now from Snell's law we will have

so we have

so we have

so medium 2 is LUCITE