## A wave of frequency 500 Hz is travelling with a speed of 350 m/s. (a) What is the phase difference between two displacements at a certain point at times 1.0 ms apart? (b) what will be the smallest distance between two points which are 45º out of phase at an instant of time?

The given that can be listed is frequency n = 500Hz speed v = 350m/s we can find wavelength λ λ = v/n = 350/500 = 0.7m and time period T as T = 1/n = 1/500 = 0.002s = 2ms a) for a time difference of 1.0ms, phase difference ∆Φ = ? for a phase…