A source of frequency 1800 Hz is moving on line with speed 30 m s An observer is standing at a point far distant from the line

Question

A source of frequency 1800 Hz is moving on line with speed 30 m s An observer is standing at a point far distant from the line The wavelength of sound received by the observer when the source is nearest to the observer is n 11 metres Find n speed of sound in air 330 m s source Se

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