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# Incident X-rays have a wavelength 0.2169 nm and are scattered by the "free" electrons in graphite....

## Question

###### Incident X-rays have a wavelength 0.2169 nm and are scattered by the "free" electrons in graphite....

Incident X-rays have a wavelength 0.2169 nm and are scattered by the "free" electrons in graphite. The scattering angle in Figure 29.10 is theta = 132.4 degree. What is the momentum magnitude of the incident photon and the scattered photon? (For accuracy, use h = 6.626 Times 10^-34 J Times s and c = 2.998 Times 10^8 m/s.

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