What was the evidence that supported the quantum theory Expl

What was the evidence that supported the quantum theory? Explain what aspect of the quantum theory was supported by a particular piece of evidence?

Solution

The observed blackbody radiation results was the first experimental evidence for quantum theory.

The classical prediction of the spectrum of radiation emitted by a black body was contradicted by experimental results. Max Planck, successfully explained the experimentally measured black body spectrum by making the assumption that electromagnetic waves are the macroscopic manifestations of packets of energy called photons. Planck also made the quantum hypothesis that the energy of photons is quantized, that means the energy of the photons exists only in discrete, small packets called a quanta. This aspect was supported by the photo electric effect and black body radiation results.