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Assignment 3

# Assignment 3 - University of Florida Department of Physics...

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University of Florida Department of Physics PHY3101, Fall 2009 Introduction to Modern Physics Homework 3 - Due Fri, Jan 22 2010 Student Name: ( please print large and legibly. No UFID is necessary. ) Total: / 20 points.

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Physics 3101, HW#3, Fri, Jan 22 2010 Name: Problem 1: Compton Scattering (8 points) Gamma rays emitted by radioactive nuclei also exhibit measurable Compton scattering. Suppose a 0 . 511 MeV photon from a positron-electron annihilation scatter at 110 from a free electron. (a) What are the energies of the scattered photon and the recoiling electron? ( 3 points ) (b) Relative to the initial direction of the 0 . 511 MeV photon, what is the di- rection of the recoiling electron’s velocity vector? ( 5 points ) 1
Physics 3101, HW#3, Fri, Jan 22 2010 Name: Problem 2: Compton Scattering (4 points) Compute the Compton wavelength for: (a) an electron: (

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