Physics: Principles with Applications (7th Edition)

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

Chapter 25 - Optical Instruments - Problems - Page 741: 43

Answer

$4.0\times10^2$

Work Step by Step

Use equation 25–6b. $$M=\frac{N \mathcal{l}}{f_of_e}$$ $$M=\frac{(25cm)(17.5cm)}{(0.65cm)(1.70cm)}=395.9\approx4.0\times10^2$$
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