A proton and an `alpha`-particle enter a uniform magnetic field perpendicularly with the same speed. How many times if the time period of `alpha`-particle than that of proton? Deduce the expression for the ratio of the radii of the circular paths of two particles.

A proton and an alpha particle enter in a uniform magnetic field with the same velocity. The time period of rotation of the alpha particle wil be

The magnitude of velocites of two alpha -particle A and b, entering a uniform magnetic field perpendicularly, are in the ratio 6:1. On entering the field, they move along circular paths. Find the ratio of the radii of their paths.

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 and an alpha particle having the same kinetic energy are allowed to pass through a uniform magnetic field perpendicular to the direction of their motion. Compare the radii of the paths of the proton and alpha particle.

A deuteron and an alpha particle having same momentum are in turn allowed to pass through a magnetic field B, acting normal to the direction of motion of the particles. Calculate the ratio of the radii of the circular paths described by them.

A particle with charge q moving with a velocity v in the plane of the paper enters a uniform magnetc field B, acting perpendicular to the plane of the paper. Deduce an expression for the tie period of the charge, as it moves in a circular path in the field. Why does the kinetic energy of the charge not change, while moving in the magnetic field?

A neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities. The magnetic field is along the inward normal to the plane of paper. The tracks of the particles are labelled in Fig. SAQ 11. which of the tracks show the path of the electron and alpha-particles ?

A proton and an electron travelling along parallel patha enters a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular path with higher frequency.

An electron and a proton moving with same speed enter the same magnetic field region at right angles to the direction of the field. For which of the two particles will the radius of the circular path be smaller?