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JEE MAIN 2021
20-07-2021 - S1
Question
A deuteron and an alpha particle having equal kinetic energy enter perpendicular into a magnetic field. Let rd and $\mathbf{r}_\alpha$ be their respective radii of circular path . The value of $\frac{\mathrm{r}_{\mathrm{d}}}{\mathrm{r}_\alpha}$ is equal to :
Select the correct option:
A
$\frac{1}{\sqrt{2}}$
B
$\sqrt{2}$
C
1
D
2
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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