When light from a source is sent through a gas
I. Certain wavelengths are absorbed.
II. an emission line spectrum results.
III. A dark line is left.
Which of the following is/are correct?
- i only
- iii only
- i and ii only
-
i and iii only
- ii and iii only
The correct answer is: D
Explanation
When light from a source is sent through a gas some light of certain wavelengths is absorbed resulting in gaps that appear as dark lines