p39_043 - 43. (a) From Eq. 39-11, = (h/me c)(1 cos ). In...

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43. (a) From Eq. 39-11, ∆ λ =( h/m e c )(1 cos φ ) . In this case φ = 180 (so cos φ = 1), and the change in wavelength for the photon is given by ∆ λ =2 h/m e c . The energy E 0 of the scattered photon (whose initial energy is E = hc/λ )isthen E 0 = hc λ +∆ λ = E 1+∆ λ/λ = E 1+(2 h/m e c )( E/hc
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