What happens to the visible light radiated by stars located within a dusty gas cloud?
A)It is blocked by dust and its energy is thereby lost.
B)It is absorbed by dust,which heats the dust grains so that they emit the absorbed energy as infrared light.
C)It is reflected by dust back to the star from whence it came.
D)It passes through the cloud unaffected.

Question

Quizplus · Accepted Answer

The visible light radiated by stars located within a dusty gas cloud is absorbed by dust, which heats the dust grains. This, in turn, emits the absorbed energy as infrared light. Therefore, option B is the correct choice.

What Happens to the Visible Light Radiated by Stars Located