A car moving towards an approaching bike. The bike is moving with a velocity 30ms^(-1). Frequency of horn sounded by the car is 100 Hz, while it is observed by bike rider as 120 Hz. The actual duration of horn is 6 s. Find the time interval for which the bike rider hears it. (Take velocity of sound in air as 330ms^(-1))

A car moving towards an approaching bike. The bike is moving with a ve

1.	A car moving towards an approaching bike. The bike is moving with a velocity 30ms^(-1). Frequency of horn sounded by the car is 100 Hz, while it is observed by bike rider as 120 Hz. The actual duration of horn is 6 s. Find the time interval for which the bike rider hears it. (Take velocity of sound in air as 330ms^(-1))
Answer» 5s 6s 7s Cannot be calcualted with GIVEN information Answer :A

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