which spectrum would indicate the star was moving away from earth at the fastest speed?
which spectrum would indicate the star was moving away from earth at the fastest speed?
Answer
Brief Explanations:
When a star is moving away from Earth, its light is redshifted. The greater the redshift, the faster the star is moving away. Redshift is indicated by the shift of spectral lines towards the red - end of the spectrum. We need to look for the spectrum with the most significant shift of spectral lines towards the red end.
Answer:
The spectrum with the most extreme shift of spectral lines towards the red end (right - hand side of the spectrum) among options A, B, C, and D would indicate the star moving away from Earth at the fastest speed. Without seeing the actual differences in the shifts of the provided spectra, we can't specifically choose A, B, C, or D, but the principle is to pick the one with the greatest red - shift.