Two radioactive substances A and B of mass numbers 200 and 212 respectively, shows spontaneous α -decay with same Q value of 1 MeV. The ratio of energies of α -rays produced by A and B is _ _ _.

Atoms and Nuclei: JEE Main 2026 Physics question

JEE Main 2026 · 8 Apr, Evening shift · Q44

JEE Main 20268 Apr, Evening shiftPhysicsEasyAtoms and Nuclei183× since 2002

Two radioactive substances A and B of mass numbers 200 and 212 respectively, shows spontaneous

\alpha

-decay with same

Q

value of 1 MeV. The ratio of energies of

\alpha

-rays produced by A and B is ______.