28. WJAB (90.9 FM) is a National Public Radio-affiliated college radio station located on the campus of Alabama A & M University. It primarily features jazz and blues music programming aimed toward African-American residents of the northern counties of Alabama? What is the period of these radio waves? (b) What is its wavelength?
28. WJAB (90.9 FM) is a National Public Radio-affiliated college radio station located on the campus of Alabama A & M University. It primarily features jazz and blues music programming aimed toward African-American residents of the northern counties of Alabama? What is the period of these radio waves? (b) What is its wavelength?
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Transcribed Image Text:28. WJAB (90.9 FM) is a National Public Radio-affiliated college radio station located on the campus of Alabama A
& M University. It primarily features jazz and blues music programming aimed toward African-American
residents of the northern counties of Alabama? What is the period of these radio waves? (b) What is its
wavelength?
Transcribed Image Text:10²
106
Increasing frequency, f (Hz):
104
106
1
Radio waves
(low f, longa)
AM
104
10²
Decreasing wavelength,λ (m)
108
FM TV
1
1010
Microwave
Radar
10-2
10¹2
700 nm
10-4
1014
Infrared
10-6
600 nm
1016
Ultra-
violet
10-8
Visible light
1018
X rays
10-10
500 nm
1020
1022
Gamma (y) waves
(high f, short 2)
10-12
10-14
400 nm
1024
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