Q1 (10 points)
Gamma rays of wavelength A = 2.43 X 10-12 m are directed onto an aluminum target and are scattered by the loosely
bound (initially stationary) electrons there. The incoming gamma rays are directed at an angle of 60° measured from the
scattered in the collision. Calculate the scattered electron's stretch factor Y, its speed U (in terms of c) and its
scattering angle 0 with respect to the horizontal. The electron is relativistic after the collision.
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