Atomic nucleus; α, β and γ radiations; Law of radioactive decay; Decay constant; Half life and mean life; Binding energy and its calculation; Fission and fusion processes; Energy calculation in these processes. Photoelectric effect; Bohr’s theory of hydrogen-like atoms; Characteristic and continuous X-rays, Moseley’s law; de Broglie wavelength of matter waves.

JEE Main

1. Atoms and nuclei

2. Dual nature of matter and radiation

3. Electronic devices