Compton Scattering: An 18.0 pm wavelength photon is scattered by a stationary electron through an angle of 120°. What is the wavelength of the scattered photon? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
A. 19.2 pm
B. 20.4 pm
C. 21.6 pm
D. 22.9 pm
E. 24.1 pm
Answer: C
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