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Magnetic Effects & Magnetism

JEE Main level, single correct, medium

173 of 276

Question 173 of 276

Proton, Deuteron and alpha particle of the same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, deuteron and alpha particle are respectively $r_p, r_d$ and $r_\alpha$ . Which one of the following relations is correct?

Show answer and solution

Answer: (B) $r_\alpha=r_p \lt r_d$

r=\frac{\sqrt{2 m K}}{B q}

r \propto \frac{\sqrt{m}}{q}

r_\alpha=r_p \lt r_d

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Magnetic Effects & Magnetism (Motion of Charged Particle in Magnetic Field), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

Proton, Deuteron and alpha particle of the same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, deuteron and alpha particle are respectively rp,rdr_p, r_drp​,rd​ and rαr_\alpharα​. Which one of the following relations is correct?

JEE Main question paper PDF

More Physics practice

Proton, Deuteron and alpha particle of the same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, deuteron and alpha particle are respectively $r_p, r_d$ and $r_\alpha$ . Which one of the following relations is correct?