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प्रश्न
Explain why (or how) The shape of a pulse gets distorted during propagation in a dispersive medium.
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उत्तर १
A pulse is actually is a combination of waves having different wavelengths. These waves travel in a dispersive medium with different velocities, depending on the nature of the medium. This results in the distortion of the shape of a wave pulse.
उत्तर २
A pulse of sound consists of a combination of waves of different wavelength. In a dispersive medium, these waves travel with different velocities giving rise to the distortion in the wave.
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संबंधित प्रश्न
A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string, how long does the disturbance take to reach the other end?
A transverse harmonic wave on a string is described by y(x, t) = 3.0 sin (36 t + 0.018 x + π/4)
Where x and y are in cm and t in s. The positive direction of x is from left to right.
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If it is travelling, what are the speed and direction of its propagation?
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(c) What is the initial phase at the origin?
(d) What is the least distance between two successive crests in the wave?
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