If the kinetic energies of an electron, an alpha particle and a proton is E1, E2 and E3 respectively with same de Broglie wavelength, then what will be the relation between these energies?
Answer & explanation
Correct answer: option 4
The relation between de Broglie wavelength and kinetic energy is given by
\(\lambda \)=\(\frac{h}{2mK}\)
So, if \(\lambda \) is same for all the particles, their kinetic energies will also be same i.e. E1=E2=E3.