A cyclotron is used to accelerate protons. If the operating magnetic field is $1.0\,T$ and the radius of the cyclotron 'dees' is $60 cm$, the kinetic energy of the accelerated protons in $MeV$ will be.
[use $m _{p}=1.6 \times 10^{-27} kg , e =1.6 \times 10^{-19} C$ ]
JEE MAIN 2022, Medium
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Kinetic energy of electron in cyclotron
$=\left[\frac{ q ^{2} B ^{2} r _{0}^{2}}{2 m }\right]$
$=18\,MeV$
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