3. The angular frequency of the surface waves in a liquid is given in terms of the wave number k by w = Vgk + Tk³/p, where g is the acceleration due to gravity, p is the density of the liquid, and T is the surface tension (which gives an upward force on an element of the surface liquid). Find the phase and group velocities for the limiting cases when the surface waves have: (a) very large wavelengths and (b) very small wavelengths.
3. The angular frequency of the surface waves in a liquid is given in terms of the wave number k by w = Vgk + Tk³/p, where g is the acceleration due to gravity, p is the density of the liquid, and T is the surface tension (which gives an upward force on an element of the surface liquid). Find the phase and group velocities for the limiting cases when the surface waves have: (a) very large wavelengths and (b) very small wavelengths.
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Transcribed Image Text:3. The angular frequency of the surface waves in a liquid is given in terms of the wave number
k by w = Vgk + Tk³/p, where g is the acceleration due to gravity, p is the density of the
liquid, and T is the surface tension (which gives an upward force on an element of the
surface liquid). Find the phase and group velocities for the limiting cases when the surface
waves have: (a) very large wavelengths and (b) very small wavelengths.
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