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XXth century_physics

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Compton’s first plot Compton’s second plot<br />

Change of wavelength due to Doppler<br />

effect λ/λ ’ = 1 - v/c = 1 - h/mcλ =<br />

= 1 - 0.034 = 0.966 , where v found<br />

from ”momentum conservation”<br />

h/λ = mv<br />

∆λ = λ ’ - λ =<br />

= (h/m o c)(1 - cos Θ) =<br />

= 0.024 Å for 90 o

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