A -ray photon collides with a free electron and is scattered through

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

500\,\text{keV}

\,\gamma

-ray photon collides with a free electron and is scattered through

90^{\circ}

. Which of the following is closest to the energy of the scattered photon? (a)

440\,\text{keV}

(b)

500\,\text{keV}

(c)

253\,\text{keV}

(d)

170\,\text{keV}