Estimate the observed wavelength for the 656-nm line in the Balmer series of hydrogen in the spectrum
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(a) 1.0 x 106 ly,
(b) 1.0 x 108 ly,
(c) 1.0 x 1010 ly.
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We find the velocity from Hubbles law Eq 336 and the observed wavelength from th...View the full answer
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