modern phys include what all

i need to abt number of questions asked for phys and chem chapterwise

Dear student,

Modern physics has following parts-

1. Atomic physics- The Bohr model and different transition series in Hydrogen-like atoms.

2. Nuclear physics- Structure, classification of nuclei, Mass-Energy Equivalence, Mass defect and binding energy, Nuclear reactions, Fission and Fusion,

3. Radioactivity- Law of Radioactive Decay