The equivalent wavelength of a moving electron has the same value as that of a photon having an energy of `6xx10^(-17)J`. Calculate the momentum of the electron.

Explanation

Here, energy of photon, `E=6xx10^(-17)J`
Energy of a photon, `E=hv=(hc)/lambda`
Wavelength of a photon, `lambda=(hc)/E`
Momentum of the moving electron is
`p=h/lambda=h/(hc//E)=E/c=(6xx10^(-17))/(3xx10^8)=2xx10^(-25)kgms^(-1)`