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An electron and proton are possessing th...

An electron and proton are possessing the same amount of kinetic energy. Which of the two have greater wavelength ?

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`E_e=1/2m_enu_e^2`
and `E_p=1/2 m_pnu_p^2`
`rArr m_enu_e=sqrt(2E_em_e) and m_pv_p =sqrt((2E_p" "m_p)`
But `E_e=E_p rArr (lambda_e)/(lambda_p)=sqrt(m_p)/(m_e)gt 1`
`therefore lambda_e gt lambda_p`.
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