Electrons are accelerated through a potential difference V and protons are accelerated through a potential difference 4V. The de-Broglie wavelength are 
and 
for electrons and protons respectively.The ratio of 
is given by (Given, 
is mass of electrons and 
is mass of proton).
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
We have, 
, we have that
……… .(i)
For electron, 
……… .(ii)
For proton 
……… (iii)
On dividing Eq. (ii) by Eq. (iii), we get
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