what is SHM and phase of wave in good detail and examples

what is SHM and phase of wave in good detail and examples


1 Answers

askIITians Faculty 747 Points
8 years ago
Inmechanicsandphysics,simple harmonic motionis a type ofperiodic motionwhere the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement. Simple harmonic motion can serve as a mathematical model of a variety of motions, such as the oscillation of a spring. In addition, other phenomena can be approximated by simple harmonic motion, including the motion of asimple pendulumas well asmolecular vibration. Simple harmonic motion is typified by the motion of a mass on a spring when it is subject to the linear elastic restoring force given byHooke's Law. The motion is sinusoidal in time and demonstrates a single resonant frequency. In order for simple harmonic motion to take place, the net force of the object at the end of the pendulum must be proportional to the displacement.

Simple harmonic motion provides a basis for the characterization of more complicated motions through the techniques of Fourier analysis.

Waves may be graphed as a function of time or distance. A single frequency wave will appear as a sine wave in either case. From the distance graph the wavelength may be determined. From the time graph, the period and frequency can be obtained. From both together, the wave speed can be determined.

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