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NEET Sample Paper NEET Sample Test Paper-2

  • question_answer
    A proton and a-particle enter a uniform magnetic field with the same velocity. The period of rotation of the a-particle will be:

    A)  four times that of the proton

    B)  two times that of the proton

    C)  three times that of the proton

    D)  same as that of the proton

    Correct Answer: B

    Solution :

    As,      \[T=\frac{2\pi m}{qB}\] \[\Rightarrow \] \[\frac{{{T}_{a}}}{{{T}_{p}}}=\frac{{{m}_{a}}}{{{m}_{p}}}.\frac{{{q}_{p}}}{{{q}_{a}}}=2\left( {{q}_{p}}=\frac{{{q}_{a}}}{2} \right).\]


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