A proton of energy \( 1 \mathrm{MeV} \) describes a circular path i...

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A proton of energy \( 1 \mathrm{MeV} \) describes a circular path in plane at right angles to a uniform magnetic field of \( 6.28 \times 10^{-4} \mathrm{~T} \). The mass of proton is \( 1.7 \times 10^{-27} \mathrm{~kg} \).
The frequency of proton is nearly equal to
(a) \( 10^{7} \mathrm{~Hz} \)
(b) \( 10^{5} \mathrm{~Hz} \)
(c) \( 10^{6} \mathrm{~Hz} \)
(d) \( 10^{4} \mathrm{~Hz} \)
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