At t = 0, a transverse wave pulse in wire is described by the function y = \(\frac{6}{x^2-3}\) where x and y are in metre. The function y(x, t) that describes this wave equation, if it is travelling in the positive x direction with a speed of 4.5 ms–1 is
1
y = \(\frac{6}{(x+4.5 t)^2-3}\)
2
y = \(\frac{6}{(x-4.5 t)^2+3}\)
3
y = \(\frac{6}{(x+4.5 t)^2+3}\)
4
y = \(\frac{6}{(x-4.5 t)^2-3}\)