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Example of waves Example  of waves:   A progressive and a stationary simple harmonic wave each has the same frequency of 250 Hz, and the same velocity of 30 m/s. calculate (i)                   Phase difference between two vibrating points on the progressive wave, which are 10 cm apart. (ii)                 The equation of motion of progressive wave of its amplitude is 0.01 m. (iii)                The distance between the nodes in the stationary wave, (iv)               The equation of motion of the stationary wave if its amplitude is 0.03 m. Solution:       Here,   v = 250 Hz, v= 30 m/s            ...