A particular emission line, detected in the light from a galaxy, has a wavelength 
, where 
is the proper wavelength of the line. The galaxy distance from us
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
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From Hubble’s law v = Hr where H = Hubble’s constant = 19.3 mm/sec - ly and r = Distance of Galaxy from us.
According to Doppler’s effect speed of Galaxy 
⇒ ⇒ 
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