Question

Doppler's effect is sound in addition of relative velocity between source and observer, also depends while source and observer or both are moving. Doppler's effect in light depend only on the relative velocity of source and observer. The reason of this is.

• A. Einstein mass-energy relation.
• B. Einstein theory of relativity
• C. Photoelectric effect
• D. None of the above

Answer 1

The correct option is D None of the above

Doppler effect refers to the change in wave frequency during the relative motion between a wave source and it's observer by considering that the Velocity of the observer with respect to the source velocity is negligible.