Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A proton (mass 
, charge 
) and an alpha particle (mass 
, charge 2e) are both accelerated from rest through the same potential difference, 
. If the de-Broglie wavelength of the proton is 
, what is the de-Broglie wavelength of the alpha particle 
?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The de-Broglie wavelength 
is given by 
For the proton:
For the alpha particle:
Therefore, the de-Broglie wavelength of the alpha particle is
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