Wb-1 The Melde' Experiment
Aim
To demonstrate standing waves on a string.
Apparatus
- Motor with eccentric cam
- Light string 2 meter length
- 100 gm weight
- D.C. Power Pack
- Pulley on stand
- Black backing cloth
- Retort stands
- UV Fluorescent Tubes
Melde's Experiment Setup and Standing Wave Formations.
Description
A light string approximately 2 metres in length is connected to a motor driven eccentric cam. The string passes over a pulley and is attached to a 100 gm. weight. A black cloth may be placed behind the string to aid visibility. As the speed of the motor is increased standing waves are observed. It is possible to obtain 6 or 7 modes and with the aid of a stroboscope the string motion can be frozen for analysis.