A circular wave travels outward from the origin At one instant of time, the phase at r 1 20 cm is 0 rad and the phase at r 2 80 cm is 3 rad What is the wavelength of the wave

Question: A circular wave travels outward from the origin. At one instant of time, the phase at r 1 = 20 cm is 0 rad and

A circular wave travels outward from the origin. At one instant of time, the phase at r₁ = 20 cm is 0 rad and the phase at r₂ = 80 cm is 3π rad. What is the wavelength of the wave?

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