Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Exercises - Page 250: 6.31a

Answer

That radiation is found in the infrared portion of the electromagnetic spectrum.

Work Step by Step

A diode laser emits at a wavelength: $\lambda=987nm=9.87\times10^{-7}m$. A radiation with a wavelength like that lies in the infrared portion of the electromagnetic spectrum, whose wavelength range is from $7.5\times10^{-7}m$ to over $10^{-4}m$.
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