阿摩線上測驗
16. Which of the following mathematical expressions correctly represents Planck's formula for the energy density per unit frequency $\rho(\omega)$ of a blackbody at absolute temperature $T$? ($k_B$: Boltzmann constant, $\omega$: angular frequency of light.)
(A) $\frac{\hbar \omega^3}{\pi^2 c^3} \frac{1}{e^{\hbar \omega / (k_B T)} - 1}$
(B) $\frac{\hbar \omega^3}{\pi^2 c^3} k_B T$
(C) $\frac{\hbar \omega^3}{\pi^2 c^3} e^{-\hbar \omega / (k_B T)}$
(D) $\frac{\hbar \omega^3}{\pi^2 c^3} \frac{1}{e^{\hbar \omega / (k_B T)} + 1}$
(E) $\frac{\hbar \omega}{e^{\hbar \omega / (k_B T)} - 1}$
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統計： 尚無統計資料
統計： 尚無統計資料
