The distance between two successive crests of a certain transverse wave is 1.80 m. Eight crests pass a given point along the direction of travel every 13.0 s. Calculate the wave speed.

Answer 1

λ = 1.8 m and the period T. 8T=13 or T = 13/8 sec and f=8/13 sec^-1. Vel = fλ thus vel = 1.8*8/13=14.4/13 m/s