ch38-p029 - )(1 cos ) = (2.43 pm)(1 cos 30) = 0.326 pm. The...

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29. (a) When a photon scatters from an electron initially at rest, the change in wavelength is given by ∆λ = ( h / mc )(1 – cos φ ), where m is the mass of an electron and is the scattering angle. Now, h / mc = 2.43 × 10 –12 m = 2.43 pm, so ∆λ = ( h / mc
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Unformatted text preview: )(1 cos ) = (2.43 pm)(1 cos 30) = 0.326 pm. The final wavelength is ' = + = 2.4 pm + 0.326 pm = 2.73 pm. (b) Now, = (2.43 pm)(1 cos 120) = 3.645 pm and ' = 2.4 pm + 3.645 pm = 6.05 pm....
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