Answer Happy

radio wh stored in spring). The second factor gives the distribution of the The first factor gives the initial potential elci gy 01 the particle Не energy over frequency. The integral over w can be performed easily in note that the range of integration can be taken as infinite, since function is confined essentially to a small region about wo: r/211 2(w-wo) dw= tan T (w-wo)?+(1/2) - 00 ༥20] Score =1. IT Thus we find that W= roo dw - dw = 1 kx} dw (3: as the total emitted energy, as it should by conservation of energy.
The profile of the emitted spectrum, 1/27 (3.56) (w-w.)?+(1/2)? is known as a Lorentz profile. The classical line breadth Aw=T for electronic oscillators is a universal constant when expressed in terms of wavelength: Aw Δλ = 2πς w2 = 29cT= 1.2 x 10- (3.57) where LÅ= 10-8 cm.