Question

The Doppler effect explains broadening of the natural width of a spectroscopic line 1 due to Interactions of two atoms emitting light at the same time 2 due to the implications of the Heisenberg uncertainty principle. 3 due to the absorbance of emitted light by a second atom that then re-emits the light. 4. due to movement of the light source relative to the detector

will rate

Answer 1

Option (4) is the correct answer.

The Doppler effect explains broadening of the natural width of a spectroscopic line----(4) due to movement of light source relative to the detector.

Explanation:

When movement of the light source change with respect to detector then there will be change in frequency of the light with respect to detector due to Doppler effect ---resulting in a broadening of the natural width of the spectral line due the Doppler effect.