Physics Technology Update (4th Edition)

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

Chapter 30 - Quantum Physics - Problems and Conceptual Exercises - Page 1073: 9

Answer

(a) $1.68\times 10^{14}Hz$ (b) infrared

Work Step by Step

(a) We can determine the frequency for maximum radiation as: $f_{peak}=5.88\times 10^{10}\times T$ We plug in the known values to obtain: $f_{peak}=5.88\times 10^{10}\times 2850=1.68\times 10^{14}Hz$ (b) We know that energy is directly proportional to frequency. The frequency of infrared radiation is larger compared to visible light, so the energy of infrared radiation is larger as well.
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