If alpha particle, proton and electron move with the same momentum, them their respective de Broglie wavelengths `lamda_(alpha),lamda_(p),lamda_(e)` are related as

Options

A. `lamda_(alpha)=lamda_(p)=lamda_(e)`
B. `lamda_(alpha)ltlamda_(p)ltlamda_(e)`
C. `lamda_(alpha)gtlamda_(p)gtlamda_(e)`
D. `lamda_(p)gtlamda_(e)gtlamda_(alpha)`

Answer

A

Explanation

(a) : de Broglie wavelength , `lamda=(h)/(p)`
where symbols have their usual meaning. `becausep_(alpha)=p_(p)=p_(e)" "becauselamda_(alpha)=lamda_(p)=lamda_(e)`