A proton, a deuteron and an alpha particle moving with equal kinetic energies enter perpendicularly into a magnetic field. If `r_p, r_d and r_a` are the respective radii of the circular paths, find the ratios `r_p/r_d and r_p/ r_a.`

A proton and a deutron moving with equal kinetic energies enter perpendicularly into a magnetic field. If r_p and r_d are the respective radii of the circular path, then the ratio r_p//r_d is

A deuteron and an alpha particle having equal kinetic energy enter perpendicular into a magnetic field. Let r_(d) and r_(alpha) be their respective radii of circular path. The value of (r_(d))/(r_(alpha)) is equal to :

A proton, a deuteron and alpha -particle, whose kinetic energies are same, enter perpendicularly a uniform magnetic field. Compare the radii of their circular paths.

A proton, a deuteron and alpha -particle, whose kinetic energies are same, enter perpendicularly a uniform magnetic field. Compare the radii of their circular paths.

A proton, a deuteron and an alpha - particle having the same kinetic energy are moving in circular trajectories in a constant magnetic field. If r_p, r_d and r_alpha denote respectively the radii of the trajectories of these particles, then

A proton, a deuteron and an alpha - particle having the same kinetic energy are moving in circular trajectors in a constant magnetic field. If r_p, r_d and r_(alpha) denote respectively the radii of the trajectories of these particles then

A proton, a deuteron and an alpha - particle having the same kinetic energy are moving in circular trajectors in a constant magnetic field. If r_p, r_d and r_(alpha) denote respectively the radii of the trajectories of these particles then