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Doppler effect given an idea of a continuously expanding universe-explain . |
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Answer» SOLUTION :Light coming from the distant star can be ANALYSED with the spectrometer. Experiment shows that wavelength of a spectral line for a light source situated for away from Earth is greater than that for same light source on Earth i.e., frequency is comparatively LOW . From this apparent decrease in frequency , known as red shift in Dopplar effect , we conclude that all distant STARS are receding from Earth which indictes that the Universe is CONTINUOUSLY expanding . |
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