A proton and a deutron both having the same kinetic energy, enter perpendicularly into a uniform magnetic field $B$. For motion of proton and deutron on circular path of radius ${R_p}$ and ${R_d}$ respectively, the correct statement is
A proton and a deutron both having the same kinetic energy, enter perpendicularly into a uniform magnetic field $B$. For motion of proton and deutron on circular path of radius ${R_p}$ and ${R_d}$ respectively, the correct statement is
- A
${R_d} = \sqrt 2 \,{R_p}$
- B
${R_d} = {R_p}/\sqrt 2 $
- C
${R_d} = {R_p}$
- D
${R_d} = 2{R_p}$
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