If the wavelength of light coming from a distant galaxy is found to be 0.5 % more than that coming from a source on earth. Then the velocity of the galaxy will be

Question

If the wavelength of light coming from a distant galaxy is found to be 0.5 % more than that coming from a source on earth. Then the velocity of the galaxy will be, 3 × 10 10 m s - 1, 1.5 × 10 10 m s - 1, 1.5 × 10 8 m s - 1, 1.5 × 10 6 m s - 1

MARKS App · Accepted Answer

d λ λ = + 0.5 % = 0.5 100 d λ λ = a c or a = c d λ λ = 3 × 10 8 × 0.5 100 = 1.5 × 10 6 m s - 1

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