An electron of mass m, when accelerated through a potential V, has de Broglie wavelength λ . The de Broglie wavelength associated with a proton of mass M accelerated through the same potential differe

Question

An electron of mass m, when accelerated through a potential V, has de Broglie wavelength $λ$ . The de Broglie wavelength associated with a proton of mass M accelerated through the same potential difference will be

Options:

Answer:

B

Solution:

$λ^{'} = \frac{h}{2 M e V}$ while $λ = \frac{h}{2 m e V}$ , so $λ^{'} = λ \frac{m}{M}$ .

TestHub · Accepted Answer

λ ′ = 2 M e V ​ h ​ while λ = 2 m e V ​ h ​ , so λ ′ = λ M m ​ ​ .

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