Answer
$55cm$
Work Step by Step
We can find the required height of the spot as follows:
$y_1=d\tan\theta_1=(2.0m)tan32^{\circ}=1.25m$
$y_2=d\tan\theta_2=(2.0m)tan(32^{\circ}+10^{\circ})=1.80m$
Now, $\Delta y=y_2-y_1=1.80-1.25=0.55m=55cm$
Physics Technology Update (4th Edition)
by Walker, James S.
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 939: 5
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