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Asked in HEC Phase II 2017 2017Moderate

Which row describes the oscillations of two moving particles in a stationary wave that are separated by a distance of half a wavelength?

Correct answer: D. D

  • A. A
  • B. B
  • C. C
  • D. D

Explanation

1 full wavelength is 2π or 360°, so half wavelength will have a 180° difference or π. Amplitude will be the same as it is the same particle, unless told otherwise. Hence, option D.

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About Stationary Waves

Stationary waves form when two waves of the same frequency and amplitude travel in opposite directions and interfere. The topic covers nodes, antinodes, wavelength, phase, resonance, and the allowed frequencies on strings and in air columns. Unlike progressive waves, stationary waves do not transfer energy from one point to another.

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