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Asked in PMC Practice Test 7 (2021) 2021

In a standing wave, the distance between a node and consecutive anti-node is:

Correct answer: D. Equal to quarter of wavelength

  • A. Equal to one wavelength
  • B. Equal to two wavelengths
  • C. Equal to half of wavelength
  • D. Equal to quarter of wavelength

Explanation

The distance between a node and its consecutive antinode is a quarter of the wavelength.

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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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