An electron, moving along the x-axis with an initial energy of 100 eV, enters a region of magnetic field vector B = (1.5 × 10–3 T) k at S (See figure). The field extends between x = 0 and x = 2 cm. The electron is detected at the point Q on a screen placed 8 cm away from the point S. The distance d between P and Q (on the screen) is :
(electron’s charge = 1.6 × 10–19C, mass of electron = 9.1 × 10–31 kg)
(1) 2.25 cm (2) 12.87 cm (3) 1.22 cm (4) 11.65 cm
