A small source of sound oscillates in simple harmonic motion with an amplitude of 17 cm. A detector is placed along the line of motion of the source. The source emits a sound of frequency 800 Hz which travels at a speed of 340 m s-1. If the width of the frequency band detected by the detector is 8 Hz, find the time period of the source.


The bandwidth is the difference between the maximum and minimum frequencies. So,




As the source is moving,



Here


f0=800 Hz


v=340ms-1


Now,







This is the maximum speed of the SHM.


Now,






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