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Mini-Quiz: Snell's Law for the Refraction of Light

by Ron Kurtus

Take this Mini-Quiz to check your understanding of the lesson material.

1. What is the purpose of Snell's Law?

To calculate what the refracted angle is

To prevent light from being refracted

To show how sine waves travel

2. What does arcsin(X) mean?

The sine whose arc is X

The same as sin(X)

The angle whose sine is X

3. How could the critical angle of refraction bother a fish?

The fish does not know how to calculate a sine

The fish could not see out of the water at certain angles

The fish could not be seen by someone outside the water

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Always do your best

Resources and references

Ron Kurtus' Credentials


Refraction of Light - From the University of Missouri

Electromagnetic Waves Resources

Physics Resources


(Notice: The School for Champions may earn commissions from book purchases)

Schaum's Outline of Optics by Eugene Hecht; McGraw-Hill (1974) $16.95

Introduction to Modern Optics by Grant R. Fowles; Dover Publications (1989) $16.95

Optics by Eugene Hecht; Addison Wesley (2001) $108.00 - Textbook covers wave motion, electromagnetic theory, propagation of light, geometrical optics, superimposition of waves, polarization, interference, diffraction, fourier optics and lasers

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