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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic ForceEasy2 minPYQ_2015

PhysicsEasysingle choice

A proton and an alpha particle both enter a region of uniform magnetic field B, moving at right angles to the field B. if the radius of circular orbits for both the particles is equal and the kinetic energy acquired by proton is 1 MeV, the energy acquired by the alpha particle will be:NEET 2015 (Phase 2)

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Answer:

Solution:

$R = \frac{m V}{q B} = \frac{\sqrt{2 m (k E)}}{q B}$

Since R is same so $K E \propto \frac{q^{2}}{m}$

So KE of $α$ particle will be $\frac{{(2)}^{2}}{4} = 1 M e V$

Stream:NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Force

⏱ 2mℹ️ Source: PYQ_2015

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