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3 cards from this section. Quick, good the night before a test.
What is refraction?
Think about light and water.
Define the incident ray.
It's the incoming ray.
What is refraction?
Consider the interactions of light with different materials.
True or False: The angle of incidence is always equal to the angle of refraction.
Think about how light behaves when it passes from one medium to another.
If you know the angle of incidence is 60° and the refractive index of glass is approximately 1.5, calculate the angle of refraction.
Start with the sine function for both angles.
A ray of light passes from air (n=1) into water (n=1.33) at an angle of 30°. Calculate the angle of refraction.
Use sine relationships carefully.
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