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PRACTICE / Wave phase

Two points on the same wave

A sinusoidal wave has wavelength 0.80 m. Two points are separated by 0.20 m along its propagation direction.

Find the magnitude of their phase difference at one instant.

Organize the givens & assumptions
  • λ = 0.80 m
  • Δx = 0.20 m

Same instant and one sinusoidal travelling wave; wavelength 0.80 m; requested phase separation is a magnitude.

  1. Aπ/2 rad\pi/2\ \mathrm{rad}
  2. Bπ rad\pi\ \mathrm{rad}
  3. C2π rad2\pi\ \mathrm{rad}
  4. D1/4 rad1/4\ \mathrm{rad}

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