An `alpha`- particle and a proton having the same momentum enter a region of uniform magnetic field and move in circular paths. The ratio of the radii of curvature of their circular paths `r_(a)//r_(p)` in the field is

An alpha particle and a proton having same momentum enter into a region of uniform magnetic field and move in circular paths. The ratio of the radii of curvature of their paths, (R_(alpha))/(R_(p)) in the field is

An alpha -particle and a proton having same momentum ente into a region of uniform magnetic filed and paths r_a/r_p in the field is-

A proton, a deuteron and an alpha -particle with the same KE enter a region of uniform magnetic field, moving at right angles to B. What is the ratio of the radii of their circular paths ?

A proton, a deuteron and an alpha -particle with the same KE enter a region of uniform magnetic field, moving at right angles to B. What is the ratio of the radii of their circular paths ?

An alpha - particle and a proton moving with the same kinetic energy enter a region of uniform magnetic field at right angles to the field . The ratio of the radii of the paths of alpha - particle to that of the proton is