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A sound source moves with a speed of 80 ...

A sound source moves with a speed of 80 m/s relative to still air toward a stationary listener. The frequency of sound is 200Hz and speed of sound in air is 340 ms.
Find the frequency heard by the listener.

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262 Hz
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AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
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