Question

The apparent wavelength of the light from a star moving
away from the earth is 0.2% more than its actual wavelength.
Then the velocity of the star is
(a) 6 × 10⁷ m/sec (b) 6 × 10⁶ m/sec
(c) 6 × 10⁵ m/sec (d) 6 × 10⁴ m/sec

Answer 1

Answer:

not clear....... ............

Answer 2

Answer:

I think option B is the answer to the question