A particle moving with velocity v having specific charge (q/m) enters a region of magnetic field B having width `d=(3mv)/(5qB)` at angle` 53^(@)` to the boundary of magnetic field. Find the angle `theta` in the diagram.

A charged particle enters into a magnetic field with velocity vector making an angle of 30^@ with respect of the direction of magnetic field. The path of the particle is

A charged particle enters a region of uniform magnetic field at an angle of 85@ to the magnetic line of force . The path of the particle is a circle .

A charge particle of mass m and charge q enters in a region of uniform magnetic field as shown in figure.The magnitude of change in linear momentum due to magnetic field will be

A particle of mass m and charge q enters a region of magnetic field (as shown) with speed v at t = 0. There is a region in which the magnetic field is absent as shown. The particle after entering the region collide elastically with a rigid wall. Time t after which the velocity of particle become antiparallel to its initial velocity is -

The figure shows two regions of uniform magnetic field of strengths 2B and 2B. A charged particle of mass m and charge q enters the region of the magnetic field with a velocity upsilon = (q B w)/(m) , where w is the width of each region of the magnetic field. The time taken by the particle to come out of the region of the magnetic field is

The figure shows two regions of uniform magnetic field of strengths 2B and 2B. A charged particle of mass m and charge q enters the region of the magnetic field with a velocity upsilon = (q B w)/(m) , where w is the width of each region of the magnetic field. The time taken by the particle to come out of the region of the magnetic field is

A charge q enters into a magnetic field (B) perpendicularly with velocity V. The time rate of work done by the magnetic force on the charge is

A charge q enters into a magnetic field (B) perpendicularly with velocity V. The time rate of work done by the magnetic force on the charge is

A charge particle of charge 'q' and mass 'm' enters in a given magnetic field 'B' and perpendicular to the magnetic field as shown in the figure. It enters at an angle of 60^(@) with the boundary surface of magnetic field and comes out at an angle of 30^(@) with the boundary surface of the magnetic field as shown in the figure. Find width 'd' in which magnetic field exist.