Standing Wave in a Spring - 4th

A spring is attached to a speaker at one end and a support at the other end. A sine wave generator drives the vibrations of the speaker. The up and down vibrations of the speaker introduces longitudinal waves within the spring. The frequency is adjusted until a standing wave pattern is established. The nodal positions within the spring are observed clearly since these are stationary coils of no disturbance. The anti-nodal positions are characterized by coils which vibrate back and forth at high frequency. These positions are blurred due to the rapid motion of the coils.

For more information about the physics of standing waves, visit The Physics Classroom Tutorial - www.physicsclassroom.com/Class/waves/.

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