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Write an expression for a progressive harmonic wave and explain the various parameters used in the expression. |
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Answer» The expression of a progressive harmonic wave is written as `y = a sin ( omega t- ( 2pi)/( lambda)x)` Parameters `:` (1)Amplitude (a) `:` It is the maximum displacement of a vibrating particle from its mean position. (2) Frequency (v) `:` It is the number of complete vibrations made by a vibrating body in one second. (3) Wavelength (`lambda` ) ` :` It is defined as the distance covered by a wave while it completes one vibration. ( or )It is the distance between two consecutive points in the same phase. (4) Phase of vibration ( `phi`) `:` The phase of vibration of a vibrating particle gives its state of displacement at a given instant. Itis generally given by the phase angle. |
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