AP EAMCET Medical 2017 Shift 2 Paper

Election beam of kinetic energy 182 eV moving along +X direction is subjected to a uniform magnetic field at a point A as shown in the figure. The magnetic field acts along the line AB and makes an angle of 60° with the X-axis. The minimum value of the magnetic field required so that the electrons hit the point B at a distance of 22 cm from A is_____x 10−4.
(Mass of the electron = 9.1 x 10−31 kg and charge of the electron = 1.6 × 10−19 C)