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 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 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.

When a charged particle moves perpendicular to a magnetic field, then

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.

A beam of alpha - particles and of protons, of the same velocity v, enters a uniform magnetic field at right angles to the field lines. The aprticles describe

A charged particle enters at 30^@ to the magnetic field. Its path becomes.

A charge q of mass m moving with velocity v, at right angles to a uniform magnetic field B. Deduce the expression for the radius of the circular path it describes.

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 positively charged particle moving due east enters a region of uniform magnetic field directed vertically upwards. The particle will