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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic ForceEasy2 minPYQ_2020

PhysicsEasysingle choice

A proton and a deuteron with the same initial kinetic energy enter a magnetic field in a direction perpendicular to the direction of the field. The ratio of the radii of the circular trajectories described by them is

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Answer:

Solution:

For a moving charge in a perpendicular magnetic field,

$\frac{m v^{2}}{r} = B q v$

$\Rightarrow r = \frac{m v}{B q} = \frac{p}{B q} = \frac{\sqrt{2 m K}}{q B}$

$\frac{r_{p}}{r_{d}} = \sqrt{\frac{m_{p}}{m_{d}}} = \sqrt{\frac{1}{2}} = \frac{1}{\sqrt{2}}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Force

⏱ 2mℹ️ Source: PYQ_2020

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