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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMotion analysis in electric & magnetic fieldMedium2 minQB

PhysicsMediumsingle choice

A proton, a deuteron and an $α$ -particle with same kinetic energy enter into a uniform magnetic field at right angle to magnetic field. The ratio of the radii of their respective circular paths is :

Options:

Answer:

Solution:

Radius of circular path in magnetic field is given by

$R = \frac{m v}{q B} = \frac{m (\sqrt{2 (KE)})}{q B \sqrt{m}} \propto \frac{\sqrt{m}}{q}$

$R_{P} : R_{D} : R_{α} = \frac{1}{1} : \frac{\sqrt{2}}{1} : \frac{\sqrt{4}}{2} = 1 : \sqrt{2} : 1$

Stream:JEESubject:PhysicsTopic:MagnetismSubtopic:Motion analysis in electric & magnetic field

⏱ 2mℹ️ Source: QB

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