Wave Motion Quiz

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Questions and Answers

Which of the following equations represents the wave equation for a string under tension?

  • y(x, t) = A cos(kx)cos(ωt)
  • y(x, t) = A sin(kx)sin(ωt)
  • y(x, t) = A sin(kx)cos(ωt) (correct)
  • y(x, t) = A cos(kx)sin(ωt)

What type of wave is formed when two waves of the same frequency and amplitude traveling in opposite directions superpose?

  • Polarized wave
  • Longitudinal wave
  • Transverse wave
  • Standing wave (correct)

What type of wave is formed when two waves of the same frequency and amplitude traveling in opposite directions superpose?

  • Standing wave (correct)
  • Longitudinal wave
  • Transverse wave
  • Progressive wave

What is the characteristic of a stationary wave?

<p>Nodes and antinodes that do not move (B)</p> Signup and view all the answers

What is the characteristic of a stationary wave?

<p>Nodes and antinodes (D)</p> Signup and view all the answers

Which of the following equations represents the wave equation for a string under tension?

<p>v = √(T/μ) (A)</p> Signup and view all the answers

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Study Notes

Wave Equations and Stationary Waves

  • The wave equation for a string under tension is represented by the equation: ∂²u/∂t² = v² ∂²u/∂x²
  • When two waves of the same frequency and amplitude traveling in opposite directions superpose, a standing wave (or stationary wave) is formed
  • A standing wave is characterized by nodes (points of zero amplitude) and antinodes (points of maximum amplitude)
  • Standing waves have fixed nodes and antinodes, and the waveform appears to be standing still, hence the name "standing wave"

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