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A stationary sound sources of frequency 334 Hz and a stationary observer 'O' are placed near a reflecting surface moving away from the source with velocity 2m/sec as shown in the figure. If the velocity of sound waves in air is 330 m/sec, find the apparent frequency of the echo

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