Question

The source of a wave generates 25 crests and 25 troughs in 5.0s, and the distance between two successive crests in that wave is 1.5 m . What is the speed of the waves
λ=1.5 m.
s=25•λ/2=25•1.5/2=18.75 m
v =s/t =18.75 /5 =3.75 m/s
Thank you

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