A charged particle is projected in a magnetic field \( \vec{B}=10 \hat{k} \mathrm{~T} \) from th...

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A charged particle is projected in a magnetic field \( \vec{B}=10 \hat{k} \mathrm{~T} \) from the origin in \( x-y \) plane. The particle moves in a circle and just touches a straight line \( y=5(\mathrm{~m}) \) at \( x=5 \sqrt{3}(\mathrm{~m}) \). Then (mass of particle \( =5 \times 10^{-5} \mathrm{~kg} \), charge \( \left.=1 \mu \mathrm{C}\right) \)
(a) the coordinates of centre of circular path are \( (10,0) \)
(b) the coordinates of centre of circular path are \( (5 \sqrt{3},-5) \)
(c) the coordinates of centre of circular path are \( (5,-5 \sqrt{3}) \)
(d) the coordinates of centre of circular path are \( (5 \sqrt{3},-5 / 2) \)
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