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: 10


Choice A.

Work Step by Step

The Rayleigh criterion, equation 25-7, calculates the resolution limit for a lens/mirror of diameter D when using light of wavelength $\lambda$. The objects are resolvable if they are separated by a minimum angle $\theta$, where $\theta = \frac{1.22 \lambda}{D}$. The smaller the angle, the better the resolution. Using the shortest-wavelength uv light, all else being equal, gives the best resolution.
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