Answered: F (deg) 30.6 58.7 90.2 119.2 151.3 L'…

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F (deg) 30.6 58.7 90.2 119.2 151.3 L' (pm) 5.52 6.40 7.60 8.84 9.69

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Question

To test the photon concept, you perform a Compton-scattering experiment in a research lab. Using photons of very short wavelength, you measure the wavelength I′ of scattered photons as a function of the scattering angle f, the angle between the direction of a scattered photon and the incident photon. You obtain these results

Your analysis assumes that the target is a free electron at rest. (a) Graph your data as I′ versus 1 - cosf. What are the slope and y-intercept of the best-fit straight line to your data? (b) The Compton wavelength lC is defined as l_C = h/mc, where m is the mass of an electron. Use the results of part (a) to calculate l_C. (c) Use the results of part (a) to calculate the wavelength l of the incident light.

F (deg)
30.6
58.7
90.2
119.2
151.3
L' (pm)
5.52
6.40
7.60
8.84
9.69

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