Задача 40040.

What is the phase difference between the oscillations of two points if they are 3 m apart and lie on a straight line perpendicular to the wave front. The wave propagation speed is 600 m/s, and the oscillation period is 0.02 s.

A detailed solution with a brief note of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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