College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 1 - Problems: 14

Answer

(a) $d = 5.0\times 10^{-3}~cm$ (b) The area has been magnified by a factor of 360,000

Work Step by Step

(a) The vessels are magnified by a factor of 600. We can find the diameter $d$ of the vessel: $d = \frac{3.0~cm}{600}$ $d = 0.0050~cm$ $d = 5.0\times 10^{-3}~cm$ (b) Let the vessel's radius be $r$. We can find an expression for the area of the vessel: $A = \pi~r^2$ In the micrograph, the radius is $600~r$. We can find the area of the image in the micrograph: $A' = \pi~(600~r)(600~r)$ $A' = 360,000~\pi~r^2$ $A' = 360,000~A$ The area has been magnified by a factor of 360,000.
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