A radio beacon at sea oscillates at sea on waves with an oscillation period of 0.5 s.
| June 15, 2021 | education
A radio beacon at sea oscillates at sea on waves with an oscillation period of 0.5 s. The speed of the sea waves is 4ms. Determine the wavelength.
T = 0.5 s.
V = 4 m / s.
λ -?
The length of a wave λ is the smallest distance between its crests.
The speed of propagation of the wave V is determined by the formula: V = λ * v, where λ is the wavelength, v is the frequency of the wave.
λ = V / v.
We express the frequency of the wave v by the formula: v = 1 / T, where T is the oscillation period.
The formula for determining the wavelength λ will take the form: λ = V * T.
λ = 4 m / s * 0.5 s = 2 m.
Answer: the length of the sea wave is λ = 2 m.
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