A wave equation which gives the displacement along the direction Y is given by the equation y = 104 sin(60t + 2x), where x and y are in metres and t is time in seconds. This represents a wave

On comparing the given equation with y = a sin(ωt + kx), it is clear that wave is travelling in negative x-direction. Its amplitude a = 104 m and ω = 60, k = 2.. Hence frequency n = ω2π = 602π = 30πHzk = 2πλ = 2 ⇒ λ = π m and v = ωk = 602 = 30 m/s