Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 25 - Optical Instruments - Misconceptual Questions: 12


Choice D. Move the camera lens closer to the sensor.

Work Step by Step

The subject moving away increases the object distance. The focal length of the lens stays constant. Equation 23-8, $\frac{1}{d_{o}} + \frac{1}{d_{i}} = \frac{1}{f}$, tells us that if $ d_{o}$ increases and f stays the same, the image distance $d_{i}$ must decrease.
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