FOUNDATIONS OF ASTRONOMY-WEBASSIGN
FOUNDATIONS OF ASTRONOMY-WEBASSIGN
14th Edition
ISBN: 9780357135655
Author: Seeds
Publisher: CENGAGE L
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Chapter 10, Problem 6P

Calculate the frequency in megahertz (MHz) of the neutral hydrogen forbidden line that has an exact wavelength of 21.12 cm. Is that in the very high frequency (VHF) band from 30 to 300 MHz that includes FM radio, or in the ultra-high frequency (UHF) band from 300 to 3000 MHz that includes most TV broadcasts? (Hint: Refer to the relationship among wave speed, frequency, and wavelength, Chapter 6). (Notes: The speed of light is 3.00 × 1010 cm/s; 1 MHz = 1 × 106 Hz.)

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