The ratio of the De-Broglie wavelength for the electron and proton moving the same velocity is `m_p-Mass ` of proton,`m_e-` Mass of electron)

Options

A. `m_(p):m_(e)`
B. `m_(p)^(2):m_(e)^(2)`
C. `m_(e):m_(p)`
D. `m_(e)^(2):m_(p)^(2)`

Answer

A

Explanation

As, we know that de-Broglie wave lengths
`lambda=(h)/(mv)Rightarrowlambdaprop(1)/(m)`
Here, m=mass of charged particle and v=velocity of particle
`Rightarrow(lambda_e)/(lambda_p)=(m_p)/(m_e)`