Answer
57.3 degrees
Work Step by Step
Assume the light is coming from air to glass. Apply equation 24–6b.
$$tan\theta_p=n_{glass}=1.56$$
$$\theta_p=tan^{-1}1.56=57.3^{\circ}$$
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 24 - The Wave Nature of Light - Problems - Page 710: 61
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