Physics Technology Update (4th Edition)

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

Chapter 27 - Optical Instruments - Conceptual Questions - Page 968: 3

Answer

The minimum distance to see the image clearly is $D=\frac{N}{2}.$

Work Step by Step

We know that if we stand at a distance D in front of the mirror then our image is at a distance D behind the mirror. Thus, the total distance from us to the image is 2D, which is (let's say) equal to N. Then the minimum distance to see the image clearly is $D=\frac{N}{2}.$
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