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Mini-Quiz: Lasers

by Ron Kurtus (revised 15 February 2016)

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



1. What is the most common color of laser light?

ROY G BIV

Blue

Red

2. What makes laser light coherent?

It gives off only one color

Electrons stimulated to give light all at once

The ruby rod has a mirror on one end

3. Why do CD players use laser light?

It is cheaper than high intensity bulbs

It can be focused to a small point on the CD

Laser light responds to music better

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.


Be focused


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