Answer
$3.60\;mm$
Work Step by Step
The length of the pulse =speed of light $\times$ pulse duration
The length of the pulse =$3\times10^{8}\times 12\times 10^{-12}\;m$
The length of the pulse =$3.60\times10^{-3}\;m=3.60\;mm$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 40 - All About Atoms - Problems - Page 1249: 55a
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