In Doppler effect, if listener moves towards a stationary source then:
Correct answer: A. Observed frequency is greater than original frequency
- A. Observed frequency is greater than original frequency
- B. Observed frequency is less than original frequency
- C. Observed frequency is equal to original frequency
- D. Observed frequency is independent of original frequency
Explanation
As the listener moves towards a stationary source, the apparent frequency heard by the listener increases, while the original frequency of the source remains constant. This is known as a "blue shift" in the context of visible light, where light from a source moving towards an observer appears shifted towards the blue end of the spectrum.
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