Planck's quantum theory MCQ - Practice Questions with Answers

Atom and molecules could emit (or absorb) energy only in discrete quantities known as quanta and not in a continuous manner.

1. The nature of emission of radiation from hot bodies (black -body radiation).

2. Ejection of electrons from a metal surface when radiation strikes it (photoelectric effect).

3. Variation of heat capacity of solids as a function of temperature.

4. Line spectra of atoms with special reference to hydrogen.