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A wave travelling on a string at a speed of 10 m/s causes each particle of the string to oscillate with a time period of 20 ms. (a) What is the wavelength of the wave? (b) lf the displacement of a particle is 1.5 mm at a certain instant, what will be the displacement of a particle 10 cm away from it at the same instant?
Given,Wave speed (v) = 10 Time period (T) = a) Wavelength of the wave:= 0.02 m = 20 cm(b) Displacement of the particle at a certain instant:y = 1.5 = Phase difference of the particle at a distance x = 10 cm:The displacement is given by = = 1.5 mmHence, Displacement = 1.5 mm
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