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A bus driving along at 39.6 kmph is appr...

A bus driving along at 39.6 kmph is approaching a person who is standing at the bus stop, while honking repeatedly at an interval of 30 seconds. If the speed of the sound is 330 m/s, at what interval will the person hear the horn ?

A

31 seconds

B

29 seconds

C

30 seconds

D

the interval will depend on the distance of the bus from the passenger

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The correct Answer is:
B
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