Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 23 - Light: Geometric Optics - Problems - Page 676: 64

Answer

1.59

Work Step by Step

Use the lensmaker’s equation. $$\frac{1}{f}=(n-1)(\frac{1}{R_1}+\frac{1}{R_2})$$ $$n=1+\frac{1}{f}(\frac{R_1R_2}{R_1+R_2})$$ $$n=1+\frac{1}{28.9cm}(\frac{34.1cm}{2})=1.59$$
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