JEE Advanced Model Paper 7 with solutions for online practice

The radiation emitted when an electron jumps from n = 3 to n = 2 orbit in a fixed hydrogenatom, falls on a photo metal to produce photo electrons. The electrons from the metal surfacewith the maximum kinetic energy are made to move perpendicular to a magnetic field of 3 × 10−4 T in a radius of 10 mm. Choose the correct statement(s)