The wave vector of a plane monochromatic wave (wavelength l = 1 m) makes an angle a = n/6 with the z axis (and lies in the xz plane). Find the difference in the phases of oscillations at points P1 and P2, the coordinates of which P1(1,0,) and P2(3,0,2) are indicated in meters. Write the equation of the wave surfaces of this wave.
Short solution. Format gif
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