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Unformatted text preview: ve and convex mirror
• single-ray and multi-ray projector
• 2–12 V AC transformer
• color ﬁlter set (red, blue, green, yellow); white screen (for viewing rays) 3 θi
θr Figure 1: Setup for investigating Snell’s Law and Brewster’s angle. 4 Experiment: Snell’s Law In this experiment we will use Snell’s Law to determine the index of refraction of the acrylic used in
the following experiments.
The index of refraction is an important attribute of a transparent material, because it speciﬁes how light
behaves when it enters or leaves the material. In this experiment, you will use the semicircular acrylic lens
to investigate Snell’s law, and measure the index of refraction of the acrylic.
Place the semicircular acrylic block in the round laser pan (see Figure 1) so that it is lined up with the
blue semicircular outline. Turn on the laser using the red switch on the back of the black box attached to
the laser. Danger: Do not remove the laser from the laser mount. these laser modules emit radiation that
can be harmful to the eye....
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This document was uploaded on 02/15/2014.
- Spring '14