MCQ
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
- ✓$R_d=\sqrt{2} R_p$
- B$R_d=R_p / \sqrt{2}$
- C$R_d=R_p$
- D$R_d=2R_p$

