The main visible difference between phosphorescent and fluorescent materials is
A)an afterglow.
B)a difference in brightness.
C)the greenish color of phosphorescence.

Question

Quizplus · Accepted Answer

The main difference between phosphorescent and fluorescent materials is that phosphorescent materials have an afterglow, which means they continue to emit light after the excitation source is removed. Fluorescent materials, on the other hand, only emit light while the excitation source is present. The difference in brightness and the greenish color of phosphorescence are not the main visible differences between the two types of materials.

The Main Visible Difference Between Phosphorescent and Fluorescent Materials Is