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An electron (mass me) and a proton (mass...

An electron (mass `m_e`) and a proton (mass `m_p`) are accelerated through the same potential, then `lambda_e//lambda_p =`

A

`m_e/m_p`

B

`m_p/m_e`

C

`sqrt(m_e/m_p)`

D

`sqrt(m_p/m_e)`.

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