A proton and an alpha particle of... | Moving Charges and Magnetism

JEE MAIN 2022

26-06-2022 S1

Question

A proton and an alpha particle of the same enter in a uniform magnetic field which is acting perpendicular to their direction of motion. The ratio of the circular paths described by the alpha particle and proton is:

Select the correct option:

1 : 4

4 : 1

2 : 1

1 : 2

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$\begin{aligned} & \frac{\mathrm{R}_\alpha}{\mathrm{R}_{\mathrm{p}}}=\frac{\mathrm{M}_\alpha}{\mathrm{M}_{\mathrm{p}}} \times \frac{\mathrm{q}_{\mathrm{p}}}{\mathrm{q}_\alpha} \\ & \frac{\mathrm{R}_\alpha}{\mathrm{R}_{\mathrm{p}}}=\frac{4}{1} \times \frac{1}{2}=2\end{aligned}$

Question Tags

JEE Main

Physics

Easy

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