Classical theories predict that most of the energy from a blackbody should be radiated:
a. at the wavelength given by Wien's displacement law.
b. as thermal radiation in the infrared region.
c. a blackbody should not radiate.
d. as ultraviolet light.
Question 2
What is the surface temperature of a distant star (which emits light as if it were a blackbody) where the peak wavelength is 456 nm? (Hint: The surface of the human body at 35 C has a peak wavelength of 9.41 mm). (1 nm = 10-9 m = 10-3 mm)
a. 5100 K
c. 6040 K
b. 4510 K
d. 6360 K
Energy-flow diagram for a Georgia salt marsh.
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