Physics - Modern Physics Question with Solution | TestHub

Linear momentum of photon and electron are equal and opposite

$p=m=\frac{h}{\lambda }$;

$v =\frac{h}{m\lambda }=\frac{6.62\times 10^{-34}}{1.67\times 10^{-27}\times 122\times 10^{-19}}$

$v = 3.25 \mathrm{m}/\mathrm{s}$