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 674: 7

Answer

$A_m=3.98\times10^{-6}m^2$

Work Step by Step

$\frac{D_m}{d_i}=\frac{D_p}{d_i+d_0}$ $d_i=d_0$ $D_m=\frac{D_p}{2}$ $A_m=\pi \big(\frac{D_m}{2}\big)^2=\pi \big(\frac{D_p}{4}\big)^2=\pi \big(\frac{4.5\times10^{-3}m}{4}\big)^2$ $=3.98\times10^{-6}m^2$
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