Question

Out of electron and proton which one will have, a higher velocity to produce matter waves of the same wavelength ? Explain it.

Answer 1

From de-Brogile equation, wavelength `lamdba=(h)/(mv)`
For same wavelength for wo different particles, i.e. electron and proton, `m_(1)v_(1)=m_(2)v_(2)` (h is constant ). Lesser the mass of the particle, greater will be the velocity hence electron will have higher velocity.