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AP Physics 2
15.4 Blackbody Radiation
AdvancedMCQProportional AnalysisConceptual23.5k
Emission spectra for Star A and Star B.
Emission spectra for Star A and Star B.
An astronomer analyzes the thermal radiation spectra of two distant spherical stars, Star \(A\) and Star \(B\), as shown in the graph of relative intensity versus wavelength. Star \(A\) has a radius of \(R\), while Star \(B\) has a radius of \(2R\). Based on the spectra, what is the ratio \(P_A / P_B\) of the total power radiated by Star \(A\) to the total power radiated by Star \(B\)?

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