Find the index of refraction for medium 2 in Figure 25.12(a), assuming medium 1 is air and given the incident angle is 30.0 and the angle of refraction is 22.0°.

Strategy

The index of refraction for air is taken to be 1 in most cases (and up to four significant figures, it is 1.000). Thus n = 1.00 here. From the given information, θ₁ = 30.0° and θ₂ = 22.0°. With this information, the only unknown in Snell's law is n, so that it can be used to find this unknown.

Data from Figure 25.12

Transcribed Image Text:

Incident ray Grass (n₂) (a) Sidewalk (n) Refracted ray Refracted ray Grass (₂) (b) Sidewalk (n.) Incident ray