Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 27 - Optical Instruments - Problems and Conceptual Exercises - Page 972: 68

Answer

$1.8m$

Work Step by Step

We can find the required focal length as follows: $f_{objective}=M_{total}f_{eyepiece}$ We plug in the known values to obtain: $f_{objective}=35(5.0cm)=1.8m$
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