An electron of mass \( m \) when accelerated through a potential difference \( V \) has de Brogl...

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An electron of mass \( m \) when accelerated through a potential difference \( V \) has de Broglie wavelength \( \lambda \). The de Broglie wavelength associated with a proton of mass \( M \) accelerated through the same potential difference, will be
(A) \( \frac{\lambda m}{M} \)
(B) \( \lambda \sqrt{\frac{m}{M}} \)
(C) \( \frac{\lambda M}{m} \)
(D) \( \lambda \sqrt{\frac{m}{M}} \)
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