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AP Physics 2
15.4 Blackbody Radiation
BeginnerMCQGraphicalConceptual22.9k
Spectral intensity vs. wavelength at temperature T1.
Spectral intensity vs. wavelength at temperature T1.
A blackbody radiator is initially at an absolute temperature \(T_1\). The solid curve in the graph shows the spectral intensity as a function of wavelength \(\lambda\) for temperature \(T_1\), with peak intensity occurring at wavelength \(\lambda_1\). The temperature of the blackbody is then decreased to a new temperature \(T_2 < T_1\). Which of the following graphs best represents the new spectral intensity curve (dashed line) relative to the original curve (solid line)?

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