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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Oscillations
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The sound source of frequency 400 Hz is moving towards as stationary observer with a velocity of 40 m/s . The frequency heard by the observer is (The speed of sound in medium is 340 Hz .)

$(a)\;433\;Hz\qquad(b)\;453\;Hz\qquad(c)\;483\;Hz\qquad(d)\;383\;Hz$

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