Modern Physics | Advanced Problem | IIT JEE 1993 | Bohr's Model | Oblique Collision

IIT JEE 1993 MODERN PHYSICS PROBLEM A neutron of kinetic energy 65 eV collides inelastically with a singly ionized Helium atom at rest. It is scattered at an angle of 900 with respect to its original direction. a) Find the allowed values of the energy of the neutron and that of the atom after collision. b) If the atom gets de excited subsequently by emitting radiation, find the frequencies of the emitted radiation. [Given: mass of He atom = 4 x (mass of neutron), ionization energy of H atom = 13.6 eV] Advanced problems Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj042WlCmc1dkEIYeF2B8Fl5LB JEE Main Revision Problems, JEE Main Specific Topics, JEE Main previous Year Questions Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj0430nYZYCFKsg-KVeMURLrhk Pathfinder Physics Solutions Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj043gjnQhSMwMwiRz3WTJtyrd IRODOV Solutions Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj043ueSsHfwdwUzMMUr_I8Beb Toppling Roatational Mechanics Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj041zTAoL8rUk-APvwpoiBtfB Instantaneous Axis of Rotation playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj042LI5nvktN6UuapdEPi8lnx Center of Mass Frame Playlist https://www.youtube.com/playlist?list=PLb2lQ33Kj040FSiv2YoiN6W0IfUgQ8Gj_ Physics Concept Videos for IIT JEE Advanced and Main, NEET https://www.youtube.com/playlist?list=PLb2lQ33Kj0405bgmzmyS2WIqckJisAoFF Theory Videos GEOMETRICAL OPTICS https://www.youtube.com/playlist?list=PLb2lQ33Kj041KJaBJQB8IgV-G6PpNtL5i https://www.youtube.com/playlist?list=PLb2lQ33Kj0416UR7SbjzqIi_WRq3wRix5 https://www.youtube.com/playlist?list=PLb2lQ33Kj041Z9m8Q8EW0wuEsDmpVT4od https://www.youtube.com/playlist?list=PLb2lQ33Kj042ckQkRCRS4wSxXV4-ClDW0 https://www.youtube.com/playlist?list=PLb2lQ33Kj0438y5L5VlVb-hEJFSBFKM6O ELECTROSTATICS https://www.youtube.com/playlist?list=PLb2lQ33Kj041htt5J8CFmL6KpwagDcUF3 https://www.youtube.com/playlist?list=PLb2lQ33Kj041_sxcgdGDhf4YtcJcFUMC7 GRAVITATION https://www.youtube.com/playlist?list=PLb2lQ33Kj043eaRDtOv_qjRelsB9U-J6x CAPACITORS https://www.youtube.com/playlist?list=PLb2lQ33Kj042rHnXOBExPD6Okn3uXbKbG MAGNETIC FORCE https://www.youtube.com/playlist?list=PLb2lQ33Kj041Tk5RyD-mYHr2Lmip5Ejqn MAGNETIC EFFECTS OF CURRENT https://www.youtube.com/playlist?list=PLb2lQ33Kj0400xxJuxzj6g_Xxlmeq9UXw