A whistle of frequency f_(0) = 1300 Hzis dropped from a height H = 505 m above the ground. At the same time, a detector is projected upwards with velocity v = 50 ms^(-1)along the same line. If the velocity of sound is c = 300ms^(-1) , find the frequency detected by the detector after t = 5s.

A whistle of frequency f_(0) = 1300 Hzis dropped from a height H = 505

1.	A whistle of frequency f_(0) = 1300 Hzis dropped from a height H = 505 m above the ground. At the same time, a detector is projected upwards with velocity v = 50 ms^(-1)along the same line. If the velocity of sound is c = 300ms^(-1) , find the frequency detected by the detector after t = 5s.
Answer» 500 Hz 700 Hz 1500 Hz 2500 Hz Answer :C

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A whistle of frequency f_(0) = 1300 Hzis dropped from a height H = 505 m above the ground. At the same time, a detector is projected upwards with velocity v = 50 ms^(-1)along the same line. If the velocity of sound is c = 300ms^(-1) , find the frequency detected by the detector after t = 5s.

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