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Angle in air (°)
Using Figure 9.34, discuss how you would find the angles of refraction for a
light ray passing from air into glass with the following angles of incidence:
5°, 10° and 20°. Do you notice a trend in the resulting values? If so, describe
it. How does your value compare with that inferred from Figure 9.34?
Angle in glass (*)
20

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