Consider a black body of surface area 20.0 cm2 and temperature 5 000 K. (a) How much power does it radiate? (b) At what wavelength does it radiate most intensely? Find the spectral power per wavelength interval at (c) this wavelength
12. Consider a black body of surface area 20.0 cm2 and temperature
5 000 K. (a) How much power does it
(b) At what wavelength does it radiate most intensely?
Find the spectral power per wavelength interval at
(c) this wavelength and at wavelengths of (d) 1.00 nm
(an x- or gamma ray), (e) 5.00 nm (ultraviolet light
or an x-ray), (f) 400 nm (at the boundary between
UV and visible light), (g) 700 nm (at the boundary
between visible and infrared light), (h) 1.00 mm
(infrared light or a microwave), and (i) 10.0 cm (a
microwave or radio wave). ( j) Approximately how much
power does the object radiate as visible light?
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Was the equation for spectral power per wavelength derived from other equations? If so, which ones?
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