Question

Max Planck’s great discovery was that radiation energy is emitted in packets that he called what ?​

Answer 1

Answer:

quantization

While quantization was first discovered in electromagnetic radiation, it describes a fundamental aspect of energy not just restricted to photons. In the attempt to bring theory into agreement with experiment, Max Planck postulated that electromagnetic energy is absorbed or emitted in discrete packets, or quanta.

Answer 2

Max Planck’s great discovery was that radiation energy is emitted in packets that he called Quanta.