+2 votes
in JEE by kratos

A travelling harmonic wave on a string is described by y(x, t) = 7.5 sin (0.005 x +12t + π /4)

  1. what are the displacement and velocity of oscillation of a point at x = 1 cm, and t = 1 *? Is this velocity equal to the velocity of wave propagation?

  2. Locate the points of the string which have the same transverse displacements and velocity as the x a 1 cm point at t = 2 , 5 , and 11s.

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