Question
The wavelength of a proton, an electron and an α-particle moving with the same velocity are in the order: electron > proton > α-particle. How do you justify it?
Solution
The decreasing order of wavelength can be justified as, Wavelength is inversely proportional to mass i.e.
Thus, lesser the mass of particle, more is wavelength.
Thus, lesser the mass of particle, more is wavelength.
