Principle and Working:
This apparatus is used to study wave phenomenon in water. There are two settings "synchronous" and "independent" mode for the light strobe. Perfectly stationary images are observed in "synchronous" mode in which the wave frequency is synchronised to strobe frequency. Independent control of the light frequency for slowly moving images are observed in "independent" mode.
The system has digital display of vibration as well as strobe frequency. The keypad is used to change the respective frequencies.