Moving Charges and Magnetism

Question: A proton and an $\alpha - $particle enter a uniform magnetic field perpendicularly with the same speed. If proton takes 25 $\mu $ sec to make 5 revolutions, then the periodic time for the $\alpha - $particle would be

1) 50 $\mu $ sec

2) 25 $\mu $ sec

3) 10 $\mu $ sec

4) 5 $\mu $ sec

Solution:

Explanation: No Explanation

Motion of Charged Particle In Magnetic Field

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