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

An electron and a proton enter a magnetic field at right angles to the field with the same kinetic energy

An electron and a proton enter a magnetic field at right angles to the field with the same kinetic energy

A moving electron and a moving proton enter a uniform magnetic field in a direction perpendicular to that of the field. If the radii of their circular orbits are equal, they have the same

A proton and a deutron having equal momenta enter in a region of uniform magnetic field at right angles to the direction of the field. Depict their trajectories in the field.

An electron and proton enter a uniform magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true?

Electrons accelerated by a potential differnece V enter a uniform magnetic field of flux density B at right angles to the field. They describe a circular path of radius 'r' . If now 'V' is doubled and B is also doubled, the radius of the new circular path is