2.90 x 106 nm · K Find the wavelength (in mm) of maximum intensity of the cosmic microwave background radiation observed today. (Hint: Use Wien's law, 2max 3D mm
2.90 x 106 nm · K Find the wavelength (in mm) of maximum intensity of the cosmic microwave background radiation observed today. (Hint: Use Wien's law, 2max 3D mm
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There is only one part to this question. I need to know the answer in mm. I have solved the bottom portion, but the top question I need help on. Thank you!!

Transcribed Image Text:2.90 x 106 nm · K
T
Find the wavelength (in mm) of maximum intensity of the cosmic microwave background radiation observed today. ( Hint: Use Wien's law, 2may =
mm
What band of the electromagnetic spectrum is that in? (Examine the figure.)
Visible light
Short wavelengths
Long wavelengths
4 x 107
5 x 10
(400 nm) (500 nm) (600 nm)
7x 107meters
(700 nm)
6 x 107
Wavelength (meters)
10-12
10-10
10-8
104
102
102
104
Ultra-
violet
Gamma-
Micro-
X-ray
Infrared
Radio
ray
wave
UHF VHF FM
AM
a
Opaque
Visual
window
Radio
window
Transparent
b
Short
Wavelength
Long
O gamma ray
O ultraviolet
microwave
O O O
Opacity of
Earth's atmosphere
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