Physics

Problem

A moving electron, of mass

m_e

, and a moving proton, of mass

m_p

, both have the same de Broglie wavelength. Which of the following statements about the ratio of the electron's speed to the proton's speed,

\frac{v_{\text{electron}}}{v_{\text{proton}}}

, is correct? a.

\frac{v_{\text{electron}}}{v_{\text{proton}}} = \sqrt{\frac{m_p}{m_e}}

\frac{v_{\text{electron}}}{v_{\text{proton}}} = \sqrt{\frac{m_e}{m_p}}

\frac{v_{\text{electron}}}{v_{\text{proton}}} = \frac{m_p}{m_e}

\frac{v_{\text{electron}}}{v_{\text{proton}}} = \frac{m_e}{m_p}