A photon of energy E ejects a photoelectron from a metal surface whose work function is `W_(0)` .If this electon entres into a uniform magnetic field of induction B in a direction perpendicular to the field and describe a circular path of radius r, then the radius r is given by ,(in the usual notation)

A photon of energy E ejects a photoelectron from a metel surface whose work function is phi_(0) . If this electron enters into a unifrom magnetic field of induction B in a direction perpendicular to the field and describes a circular path of radius r, then the radius r, is given by, (in the usual notation)

A photon of energy E ejects a photoelectron from a metel surface whose work function is phi_(0) . If this electron enters into a unifrom magnetic field of induction B in a direction perpendicular to the field and describes a circular path of radius r, then the radius r, is given by, (in the usual notation)

A photon of energy E ejects a photoelectron from a metel surface whose work function is phi_(0) . If this electron enters into a unifrom magnetic field of induction B in a direction perpendicular to the field and describes a circular path of radius r, then the radius r, is given by, (in the usual notation)

A charged particle enters a magnetic field with a velocity v in a direction perpendicular to the field. Find an expression for the radius of the circular path of the particle.

A particle carrying a charge moves perpendicular to a uniform magnetic field of induction B with a momentum p then the radius of the circular path is

An electron and a proton enter region of uniform magnetic field in a direction at right angles to the field with the same kinetic energy. They describe circular paths of radius r_(e) and r_(p) respectively. Then