The earth is moving towards a fixed star with a velocity of 30 km s –1 . An observer on…

Physical Education · Class 12 · CBSE — Biomechanics and Sports

The earth is moving towards a fixed star with a velocity of 30 km s–1. An observer on the earth observes a shift of 0.58 Å in the wavelength of light coming from the star. The actual wavelength of light emitted by the star is
  1. 5800 Å
  2. 2400 Å
  3. 12000 Å
  4. 6000 Å

Answer

(A) 5800 Å

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