What does it mean when we say that absorbance is quantized?

Question

Quizplus · Accepted Answer

When we say that absorbance is quantized, it means that there are discrete energy levels within a given system. This is due to the fact that photons, which are absorbed during absorbance, have a fixed amount of energy. As a result, the energy levels within a system can only change by absorbing photons whose energy corresponds exactly to the difference between two levels. This leads to the observation of discrete absorbance peaks, rather than a continuous spectrum.

What Does It Mean When We Say That Absorbance Is