On the surface of the water in the lake, the wave propagates at a speed of 6 m / s.

On the surface of the water in the lake, the wave propagates at a speed of 6 m / s. What is the period and frequency of the buoy oscillations, if the wavelength is 3 m?

Wavelength is the distance between adjacent peaks. It is related to the frequency and speed of the wave by the following expression A = v / n. L – wavelength (Greek letter “lambda”), n – frequency, v – wave propagation speed. Hence the frequency n = v / L = 6/3 = 2 Hz. The period of the wave is the reciprocal of its frequency, that is, T = 1 / n = 1/2 = 0.5 seconds.