If an electron and a proton having same momenta enter perpendicular to a magnetic field, then
A
curved path of electron and proton will be same ( ignoring the sense of revolution)
B
they will move undeflected
C
curved path of electron is more curved than that of the proton
D
path of proton is more curved.
Text Solution
Verified by Experts
The correct Answer is:
A
KEY CONCEPT : When a charged parrticle enters perpendicular to a magnetic field, then it5 moves in a circular path of radius . ` r = (P)/(q^(B))` where ` q = charge of the particle` `P = momentum of the particle` `B = Magnetic field` Here `p, q and B` are constant for electron and proton , therefore the radius will be same.
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