Wc-3 Ultrasonic Interference
Aim
To demonstrate interference of two sound sources.
Apparatus
- Three ultrasonic transducers
- Signal generator
- C.R.O
Ultrasonic Interference Apparatus.
Description
Two ultrasonic transducers are connected to a signal generator set to their resonant frequency of 26kHz. A third transducer is connected to a C.R.O. and placed perpendicular to the line joining the transmitters. As the receiver is moved along this line, maxima and minima are displayed on the C.R.O.