Physics: Principles with Applications (7th Edition)

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

Chapter 27 - Early Quantum Theory and Models of the Atom - Questions - Page 797: 10

Answer

a. No b. Yes

Work Step by Step

a. A beam of many IR photons can contain more energy than a beam of relatively fewer UV photons. Though an individual UV photon has more energy than an individual IR photon, because E = hf and UV light has a higher frequency. b. An individual UV photon always has more energy than an individual IR photon, because E = hf and UV light has a higher frequency.
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