Question : The instrument used to study the laws of vibrating string is:
Option 1: hydrometer
Option 2: sonometer
Option 3: sphygmomanometer
Option 4: electrometer
Correct Answer: sonometer
Solution : The correct option is a sonometer .
A sonometer is a device that is used to investigate the properties and characteristics of vibrating strings. It is made up of a hollow wooden box or frame with one or more strings firmly stretched across it. Sonometers are frequently used in physics labs and classrooms to teach concepts such as sound waves, resonance, harmonics and the mechanics of vibrating strings.
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