Some chemicals which are exposed to sunlight will continue to glow even when they are placed in a dark room.This phenomenon is known as
A)alpha emission.
B)beta emission.
C)fluorescence.
D)X-rays.

Question

Quizplus · Accepted Answer

The phenomenon of certain chemicals continuing to emit light after being exposed to sunlight is known as fluorescence. This occurs when the light energy absorbed by the chemical is released gradually, instead of all at once, resulting in a lingering afterglow. Alpha and beta emission are types of radioactive decay, while X-rays are a form of high-energy electromagnetic radiation and not related to the phenomenon of persistent luminescence.

Some Chemicals Which Are Exposed to Sunlight Will Continue to Glow