The distance between any two consecutive nodes or antinodes in a stationary wavelength (λ) is _________?

Correct answer: B. λ/2

  • A. λ
  • B. λ/2
  • C. λ/4
  • D. λ/8

Explanation

In a stationary wave, adjacent nodes are separated by half a wavelength, λ/2, and adjacent antinodes are also separated by λ/2. Hence the distance between any two consecutive nodes or any two consecutive antinodes is λ/2. The likely mistake is choosing λ/4, which is the distance from a node to the nearest antinode.

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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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