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468b - i” The answer is(E Scattering refers to the...

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Unformatted text preview: i” The answer is (E) Scattering refers to the deflection of electrdmagnetic radiatian th rcrugh the celli- sicrn of individual phcitcins 1with electrons or nuclei. The Campth effect describes the precess by which scattered iii-ray phutdns have a lcrwer frequency {lenger wavelength] than incident phntdns The Cnmptdn shift equatidn describes the shift in wavelength of the scattered phe- tcin. in this case. because there is an angle cf 90" between scattered and incident phdtdn, the shift in wavelength of the phatcrn exactly equals 2.4 2-: ifl'fim, crr Dflldfi [a value ltncrwn as the Cumpten wavelength). Remember that individual phntcrn energy is directly prnpnrticrnal tn the frequency and, therefc-re, inversely prdpurtidnal tn waveiength. h c E = hf = T In other wards. a phatcrn with an initiat wavelength of LIA that undergdes a cdmptnn shift of ELIZEILELJ lcises 2% cf its energy. THE ANGETRDM IEA 'ii'ER'i’ IMPDRTANT UNIT EIF MEASUREMENT {THE LENGTH 'DF MEET CHEMICAL B‘DlilD'S IEABDUT 1A}. REMEMBER THAT 1.5: I 1fl'mrn. © -2 2005 .J WEIEEL ...
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