PHYSICS-Stationary Waves Questions and Answers

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Stationary Waves questions with answers are commonly featured in physics and general science aptitude exams like GATE, SSC JE, and campus placements. This topic explores how standing waves are formed through interference between two waves traveling in opposite directions. Practicing aptitude questions and answers related to stationary waves helps candidates understand nodes, antinodes, resonance frequency, and wave behavior in strings and air columns. These concepts are fundamental for physics-based technical aptitude tests. Solve numerical and conceptual aptitude questions with solutions PDF to enhance your preparation for engineering and science-oriented recruitment exams.

PHYSICS-Stationary Waves

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41. In a vibrating string, the points of maximum displacement are called:

  • Nodes
  • Antinodes
  • Troughs
  • Crests
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42. The wavelength of stationary waves is determined by:

  • Amplitude only
  • Frequency only
  • Boundary conditions and length
  • Velocity only
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43. For a pipe closed at one end, the fundamental node occurs at:

  • Open end
  • Closed end
  • Middle
  • Quarter length
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44. The phase difference between two particles lying on the same wavefront in a stationary wave is:

  • 0°
  • 90°
  • 180°
  • 270°
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45. When the tension in a string is increased, the frequency of stationary waves:

  • Increases
  • Decreases
  • Remains same
  • Becomes zero
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46. The number of harmonics present in an open organ pipe is:

  • Only odd harmonics
  • Only even harmonics
  • All harmonics
  • No harmonics
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47. In stationary waves, the strain is maximum at:

  • Antinodes
  • Nodes
  • Both equally
  • Neither
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48. The velocity of propagation of wave in a string is given by:

  • v = √(T/μ)
  • v = T/μ
  • v = √(μ/T)
  • v = Tμ
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49. For a given string, the fundamental frequency is 256 Hz. The frequency of second harmonic is:

  • 128 Hz
  • 256 Hz
  • 512 Hz
  • 1024 Hz
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50. Stationary waves are produced in a string when its length is:

  • Equal to wavelength
  • Multiple of half wavelength
  • Multiple of full wavelength
  • Any random length
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