A photon of energy $240.0 \mathrm{keV}$ is scattered by a free electron. If the recoil electron has a kinetic energy of $190.0 \mathrm{keV},$ what is the wavelength of the scattered photon?
Added by Benjamin C.
Step 1
0 \, \text{keV} = 240.0 \times 10^3 \, \text{eV}$ Converting to joules: $240.0 \times 10^3 \times 1.6 \times 10^{-19} = 3.84 \times 10^{-14} \, \text{J}$ Show more…
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