Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: If Oxygen ion ( O^-2) and Hydrogen…

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason RAssertion A : If Oxygen ion $\displaystyle \left(\mathrm{O}^{-2}\right)$ and Hydrogen ion $\displaystyle \left(\mathrm{H}^{+}\right)$enter normal to the magnetic field with equal momentum, then the path of $\displaystyle \mathrm{O}^{-2}$ ion has a smaller curvature than that of $\displaystyle \mathrm{H}^{+}$.Reason R : A proton with same linear momentum as an electron will form a path of smaller radius of curvature on entering a uniform magnetic field perpendicularly.In the light of the above statements, choose the correct answer from the options given below