A beam of X-rays scatters from free electrons

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

A beam of

0.030\,\text{nm}

X-rays scatters from free electrons. For one photon, the scattered wavelength is measured to be

0.031\,\text{nm}

. Which of the following is closest to the scattering angle of this photon? (Electron Compton wavelength

=2.43\times10^{-12}\,\text{m}

.) (a)

90^{\circ}

(b)

35^{\circ}

(c)

54^{\circ}

(d)

140^{\circ}