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A proton & an alpha particle of the same velocity enter inturn a region of uniform magnetic field, acting perpendicular to their direction of motion.

Deduce the ratio of radio of radii of the circular paths described by the particles.


let mass of proton = m₁
then mass of alpha particle = 4m₁
let charge of proton = q₁
then charge of alpha particle = 2q₁
substituting the values of mass and charge and taking the ration we get

0 0 0
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