Physics: Principles with Applications (7th Edition)

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

Chapter 24 - The Wave Nature of Light - Misconceptual Questions: 6

Answer

Choice B.

Work Step by Step

The increase in width of the light is due to diffraction as it passes through the narrow slit, whose size is of the same order as the wavelength of light. The height of the slit is many thousands of times larger than the wavelength of light, and causes almost no diffraction. The pattern on the screen is about the same height as the slit.
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