Concept explainers
You fix a point-like light source 3.0m away from a large screen and hold a basketball 1.0m away from the screen so that the line connecting the center of the light source and the center of the basketball is perpendicular to the screen. You observe a shadow of the basketball on the screen. Select two correct statements.
a. Moving the light source away from the screen will produce a larger shadow.
b. Moving the basketball closer to the screen will produce a smaller shadow.
c. Moving the basketball and the light source away from the screen (while keeping the distance between the light source and the basketball fixed) will not change the size of the shadow.
d. Moving the light source up will result in moving the shadow down.
e. Moving the basketball up will result in moving the shadow down.

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Chapter 22 Solutions
College Physics: Explore And Apply, Volume 2 (2nd Edition)
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