The Fraunhofer lines are evidence that ________
A)atoms contain nuclei.
B)atoms contain electrons.
C)waves interfere constructively.
D)elements absorb light.
E)elements emit light.

Question

Quizplus · Accepted Answer

The Fraunhofer lines are dark lines that appear in the spectrum of a star or other astronomical body when light from the source passes through a cooler gas cloud on its way to Earth. These lines are caused by elements in the gas cloud absorbing light at specific wavelengths, which results in gaps or "lines" in the continuous spectrum. This provides evidence that elements can absorb light, hence option D is the correct choice.

The Fraunhofer Lines Are Evidence That ________