p39_031 - − cos 30 ◦ ) = 0 . 326 pm. The Fnal...

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31. (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 isthemasso fane lectronand φ is the scattering angle. Now, h/mc =2 . 43 × 10 12 m=2 . 43pm,so∆ λ =(2
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Unformatted text preview: − cos 30 ◦ ) = 0 . 326 pm. The Fnal wavelength is λ = λ + ∆ λ = 2 . 4 pm + 0 . 326 pm = 2 . 73 pm. (b) Now, ∆ λ = (2 . 43 pm)(1 − cos 120 ◦ ) = 3 . 645 pm and λ = 2 . 4 pm + 3 . 645 pm = 6 . 05 pm....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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