For which one of the following problems did Max Planck make contributions that eventually led to the development of the "quantum" hypothesis?
A)photoelectric effect
B)uncertainty principle
C)blackbody radiation curves
D)the motion of the earth in the ether
E)the invariance of the speed of light in a vacuum

Question

Quizplus · Accepted Answer

Max Planck made his contributions to the understanding of blackbody radiation curves, which eventually led to the development of the quantum hypothesis. He proposed that the radiation emitted by a blackbody was composed of discrete packets of energy known as "quanta". This concept was a major departure from the prevailing classical theory of continuous energy emission and marked the beginning of quantum mechanics. Planck's work on the blackbody radiation problem earned him the Nobel Prize in Physics in 1918.

For Which One of the Following Problems Did Max Planck