A proton and an `alpha-`particle enter a uniform magnetic field moving with the same speed. If the proton takes `25 mu s` to make 5 revolutions, then the periodic time for the `alpha-` particle would be

A proton and an alpha -particles enters in a uniform magnetic field with same velocity, then ratio of the radii of path describe by them

A protn and an alpha particle enter into a uniform magnetic field with the same velocity. The period of rotation of the alpha particle will be

A proton and an alpha- particle enter a uniform magnetic field at right angles to the field with same speed. The ratio of the periods of alpha- particle and proton is

Statement 1: If a proton and an alpha -particle enter a uniform magnetic field perpendicularly with the same speed, the time period of revolution of alpha -particle is double than that of proton. Statement 2: In a magnetic field, the period of revolution of a charged particle is directly proportional to the mass of the particle and inversely proprotional to the charge of particle.

A proton and an a-particle enter in a uniform magnetic field perpendicularly with same speed. The will b ratio of time periods of both particle (T_(p)/(T_(alpha)) will be