Question

the diagram below represents the spectral lines from the light of an element in a laboratory on earth. which diagram below best represents the pattern of spectral lines from the same element when it was observed by edwin hubble in the light of one of the distant galaxies? (1) (2) (3) (4)

Explanation:

Edwin Hubble observed that light from distant galaxies shows a redshift. Red - shift means the spectral lines are shifted towards the red end of the spectrum. In the given diagrams, the correct one will show the spectral lines shifted towards the red end compared to the Earth - based spectrum.

Answer:

The diagram with spectral lines shifted towards the red end (usually the one where the lines are moved more towards the red side compared to the reference Earth - based spectrum). Without seeing the exact visual details of each option clearly, it's not possible to specify an exact number, but the correct one is the one showing redshift.