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A source and an observer move away from each other with a velocity of \( 10 \mathrm{~m} / \mathrm{s} \) with respect to ground. If the observer
\( \mathrm{P} \) finds the frequency of sound coming from the source as \( 1950 \mathrm{~Hz} \), then actual frequency of the source is (velocity of
W sound in air \( =340 \mathrm{~m} / \mathrm{s} \) )
[EAMCET 1997;
MH CET 2000; AFMC 2000; CBSE PMT 2001]
(a) \( 1950 \mathrm{~Hz} \)
(b) \( 2068 \mathrm{~Hz} \)
(c) \( 2132 \mathrm{~Hz} \)
(d) \( 2486 \mathrm{~Hz} \)
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