Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 34 - Images - Problems: 38b

Answer

$+71cm$

Work Step by Step

First we consider equation (34-8): $\frac{n_1}{p}+\frac{n_2}{i}=\frac{n_2-n_1}{r}$ Solving for the object distance, $p$, we obtain: $p=n_1(\frac{n_2-n_1}{r}-\frac{n_2}{i})^{-1}$ Using the given values in the table, we have: $p=1.0(\frac{1.5-1.0}{30cm}-\frac{1.5}{600cm})^{-1}$ $p=+71cm$
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