A proton and an electron travelling along parallel paths enter a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular path with higher frequency ?
The frequency of revolution of charge in a perpendicular magnetic field is given as
Where ν = frequency of revolution of charge
q = charge of particle
B = magnetic field
m = mass of particle
As we can see from formula that frequency is inversely proportional to the mass of the particle.
We know that mass of electron is less than mass of proton. Therefore, electron will move in a circular path with higher frequency.
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