If particles are moving with same velocity, then which has maximum de Brogli wavelength?
A
proton
B
-particle C
neutron
D
-particle
Text Solution
Verified by ExpertsThe correct answer is:
D
de Broglie wavelength for a particle is given by 
, where 
and 
are the mass, velocity and momentum respectively. 
is Planck's constant. Now, since all the particles are moving with same velocity, the particle with least mass will have maximum de-Broglie wavelength. Out of the given four particles (proton, 
-particles, i.e. He nucleus and 
-particles, i.e. electrons) 
-particles has the lowest mass and therefore it has maximum wavelength.
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