An `alpha` particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their veloccites find the ratio of the radii of their circular path

A proton and a deuteron with the same initial kinetic energy enter a magnetic field in a a direction perpendicular to the direction of the field . The ratio of the radii of the circular trajectories described by them is

A proton and a deuteron with the same initial kinetic energy enter a magnetic field in a a direction perpendicular to the direction of the field . The ratio of the radii of the circular trajectories described by them is

A proton and a deuteron with the same initial kinetic energy enter a magnetic field in a direction perpendicular to the direction of the field.The ratio of the radii of the circular trajectories described by them is

A proton and an alpha particle of the same velocity enter in turn a region of unifrom magnetic field acting a plane perpendicular to the magnetic field. Deduce the ratio of the radii of the circular paths described by the particles. Explain why kinetic energy of the particle after emerging from the magnetic field remains unaltered.

A proton , a deuteron and an alpha -particle enter a magnetic field perpendicular to field with same velocity. What is the ratio of the radii of circular paths ?

A proton and an alpha particle enter the same magnetic field which is perpendicular to their velocity. If they have same kinetic energy then ratio of radii of their circular path is

A proton and an alpha particle enter the same magnetic field which is perpendicular to their velocity. If they have same kinetic energy then ratio of radii of their circular path is