Question

The wavelength of the light received from a galaxy is
0.4% greater than the wave length on the earth then
the velocity of galaxy relative to the earth will be
(1) 1.2 x 107 m/sec (2) 1.2 x 106 m/sec
(3) 1.2 x 105 m/sec (4) 1.2 x 104 m/sec​

Answer 1

Answer:

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