When would the wavlength associated with an electron became equal to that with proton? (Mass of electron `=9.1095xx10^(-31)kg," Mass of proton "=1.6725xx10^(-27)kg)`

Explanation

Wave length of electron and proton are
`lambda_(e)=(h)/(m_(e)v_(e)).lambda_(p)=(h)/(m_(p)v_(p))," but "lambda_(e)=lambda_(p)`
Therefore, `(h)/(m_(e)v_(e))=(h)/(m_(p)v_(p)) or m_(e)v_(e)=m_(p)v_(p)`
`"Velocity of electron "=V_(e)=(m_(p)v_(p))/(m_(e))=(1.6725xx10^(-27)kg)/(9.1095xx10^(-31)kg)xxv_(p)=1836v_(p)`