182.

The constant $\beta$ introduced above, a small positive number, is determined by the spacial and spectral limits of the radiation influenced by the system of oscillators. If $q$ denotes the cross-section at right angles to the direction of the ray, $\Delta \nu$ the spectral width of the pencil cut out of the total incident radiation by the system, the energy which is capable of absorption and which is brought to the system of oscillators within the conical element $d\Omega$ in the time $dt$ is, according to [eqn:(332)] (332) and [eqn:(11)] (11), $q\Delta \nu (𝖪{\cos }^2\psi +{𝖪}^{\prime }{\sin }^2\psi ){\sin }^2\theta d\Omega dt.\mathrm{\backslash Label}[eqn](337)\text{upshape (337)}$ Hence the energy actually absorbed is the fraction $\beta$ of this value. Comparing this with [eqn:(322)] (322) we get $\beta =\frac{\pi N}{q·\Delta \nu ·cL}.\mathrm{\backslash Label}[eqn](338)\text{upshape (338)}$

[Conservation of Energy and Increase Of Entropy] IVConservation of Energy and Increase Of Entropy. Conclusion