MCQ
To get line spectrum, the substances are excited in their:
- ASolid state
- BMolecular state
- CGaseous state
- ✓Atomic state
✓
Answer
Correct option: D.
Atomic state
A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.
Spectral lines are often used to identify atoms and molecules from their characteristic spectral lines.
The characteristics spectral is produced by exciting them into atomic state.
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