PhysicsLAB: Snell's Law Calculations

Snell's Law is stated as n₁ sin(θ₁) = n₂ sin(θ₂) where

n₁ is the index of refraction for the first medium
n₂ is the index of refraction for the second medium
that angles θ₁ and θ₂ are always measured from the normal, NEVER from the interface.

Problems

1. Using the information given in the following diagram, calculate the optical index of refraction for medium B.

2. Using the information given in the following diagram, calculate the optical index of refraction for medium B.

3. Using the information given in the following diagram, calculate the angle of refraction in the lower medium.

4. A ray of light strikes a piece of glass (n = 1.5), making an angle of 30o with the surface. What angle does the refracted ray make with the surface inside the glass?