When there is a relative motion of an observer from a source of light, the apparent change in its wavelength is termed as

Options :
  1. Raman effect
  2. Seeback effect
  3. Doppler''s effect
  4. Gravitational effect
Answer and Explanation :-

Answer: Option 3

Explanation:

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But the effect of her being on those around her was incalculably diffusive: for the growing good of the world is partly dependent on unhistoric acts and that things are not so ill with you and me as they might have been, is half owing to the number who lived faithfully a hidden life, and rest in unvisited tombs.
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