Physics Technology Update (4th Edition)

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

Chapter 26 - Geometrical Optics - Problems and Conceptual Exercises - Page 944: 103

Answer

$0.25m$

Work Step by Step

We know that: initial position of the mirror =$\frac{7.0m}{2}=0.35m$ below the eyes Now, the final position of the mirror$=\frac{1.2m}{2}=0.6m$ Thus, the height of the stool is: $0.6m-0.35m=0.25m$
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