Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 23 - Ray Optics - Conceptual Questions - Page 688: 12

Answer

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Work Step by Step

The spoon works as a concave mirror. In a concave mirror, the image is inverted when the focal point distance is greater than the object's distance to the mirror. But if you tried to be very close to the spoon, close enough that the distance between your face and the spoon is less than the focal point, then you will see an upright image of your face. In math, for a concave mirror, when $s\gt f$, you will see an inverted image. And when $s\lt f$, you will see an upright image.
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