Answer
$n_l=1.45$
Work Step by Step
$\theta_1=\arctan{\frac{7.6cm}{8.0cm}}=43.5^o$
$n_l=\frac{1}{\sin(43.5^o)}=1.45$
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 23 - Light: Geometric Optics - Problems - Page 675: 38
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