1 L2 driven by a common oscillator and amplifier are

Last updated: 6/12/2023

1 L2 driven by a common oscillator and amplifier are arranged as shown The frequency of the oscillator is gradually increased from zero and the detector at D records a series of maxima and minima If the speed of sound is 330 m s then the frequency at which the first maximum is observed L 8 9 m is a 165 Hz c 495 Hz L 40 m b 330 Hz d 660 Hz