Lesson 4.4.4

4.4.4 Stationary waves Quiz: OCR Physics, Unit 3

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.4.4, Stationary waves: 20 multiple choice questions for the OCR Physics (H156), Unit 3: Electrons, waves and photons, written with Revision Ninja.

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The 20 questions

  1. Two progressive waves travelling in opposite directions form a stationary wave if they have equal what?

    • Phase and displacement
    • Frequency and phase
    • Speed and path
    • Frequency and amplitude

  2. A node in a stationary wave is a point of:

    • maximum frequency
    • maximum velocity
    • maximum amplitude
    • zero amplitude

  3. Two adjacent nodes in a stationary wave are separated by 0.40 m. What is the wavelength of the progressive waves?

    • 0.20 m
    • 0.40 m
    • 1.6 m
    • 0.80 m

  4. A stretched string of length 0.60 m, fixed at both ends, vibrates in its first harmonic. What is the wavelength?

    • 2.4 m
    • 0.30 m
    • 0.60 m
    • 1.2 m

  5. What is the frequency of the nth harmonic of a stationary wave?

    • Fundamental minus n
    • Fundamental over n
    • n plus fundamental
    • n times fundamental

  6. What net amount of energy is transferred along a medium by a stationary wave?

    • Variable energy
    • Zero energy
    • Maximum energy
    • Constant energy

  7. What is the fundamental wavelength for a tube closed at one end of length L?

    • 0.5L
    • 4L
    • 2L
    • L

  8. What is the fundamental wavelength for a tube open at both ends of length L?

    • 2L
    • L
    • 4L
    • 0.5L

  9. A closed tube of length 0.25 m resonates at its fundamental frequency of 340 Hz. What is the speed of sound?

    • 170 m/s
    • 85 m/s
    • 340 m/s
    • 680 m/s

  10. An open tube of length 0.50 m has speed of sound 340 m/s. What is its fundamental frequency?

    • 85 Hz
    • 340 Hz
    • 170 Hz
    • 680 Hz

  11. A stretched string of length 0.80 m has wave speed 160 m/s. What is the frequency of its second harmonic?

    • 400 Hz
    • 300 Hz
    • 200 Hz
    • 100 Hz

  12. Air columns closed at one end support which harmonics?

    • all harmonics equally
    • no harmonics
    • odd harmonics only
    • even harmonics only

  13. In a microwave stationary wave pattern, two adjacent nodes are measured 1.5 cm apart. What is the wavelength?

    • 6.0 cm
    • 1.5 cm
    • 0.75 cm
    • 3.0 cm

  14. In a resonance tube, two successive resonance lengths are 0.36 m and 0.12 m at a frequency of 1000 Hz. What is the speed of sound?

    • 120 m/s
    • 960 m/s
    • 240 m/s
    • 480 m/s

  15. The separation between adjacent antinodes in a stationary wave is:

    • 2 lambda
    • lambda
    • lambda/4
    • lambda/2

  16. A string of length 0.60 m vibrates in its third harmonic at 150 Hz. What is the frequency of its fundamental?

    • 50 Hz
    • 25 Hz
    • 450 Hz
    • 150 Hz

  17. How does the amplitude at an antinode compare to the amplitude of each component wave?

    • Half as large
    • Twice as large
    • Equal
    • Four times larger

  18. An open tube has fundamental frequency 300 Hz. What is the frequency of its second harmonic?

    • 150 Hz
    • 300 Hz
    • 450 Hz
    • 600 Hz

  19. A closed tube has fundamental frequency 200 Hz. What is the next resonant frequency above the fundamental?

    • 800 Hz
    • 400 Hz
    • 200 Hz
    • 600 Hz

  20. A stretched string fixed at both ends forms a stationary wave with 4 nodes, including the two end nodes. How many antinodes are there?

    • 2
    • 3
    • 4
    • 5

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