Which one of the following pairs of characteristics of light is best explained by assuming that light can be described in terms of photons?
A)photoelectric effect and the effect observed in Young's experiment
B)diffraction and the formation of atomic spectra
C)polarization and the photoelectric effect
D)existence of line spectra and the photoelectric effect
E)polarization and the formation of line spectra

Question

Quizplus · Accepted Answer

The photoelectric effect involves the interaction of light with matter at the atomic scale, which can be explained in terms of photons. The existence of line spectra also suggests that light can be quantized, which is a property of photons.

Which One of the Following Pairs of Characteristics of Light