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The apparent frequency of the whistle of...

The apparent frequency of the whistle of an engine changes in the ratio 6:5 as the engine passes a stationary observer. If the velocity of the sound is 330 m/s then the velocity of the engine will be

A

25 m/s

B

60 m/s

C

30 m/s

D

80 m/s

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AAKASH INSTITUTE ENGLISH-MOCK TEST 7-Exercise
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