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Magnetics question

2012 · Shift 0 · Q56

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JEE Main
Physics
Magnetics
2012 · Shift 0 · Q56

Magnetics question

2012 · Shift 0 · Q56

JEE MainPhysicsMagneticsMCQ+4 / −1

Proton, deuteron and alpha particle of same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, denuteron and alpha particle are respectively

{r_p},{r_d}

and

{r_\alpha }

. Which one of the following relation is correct?

A
${r_\alpha } = {r_p} = {r_d}$
B
${r_\alpha } = {r_p} \lt {r_d}$
C
${r_\alpha } \gt {r_d} \gt {r_p}$
D
${r_\alpha } = {r_d} \gt {r_p}$

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