- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
H3-01. Standing Sound Waves - Two Sources
Purpose
To demonstrate the origin of standing waves from two identical sources.
Equipment
Audio oscillator, two small speakers and microphone on optical rail, audio amplifier, and dual trace oscilloscope.
Setup Time
10 min.
Images
Description
Both speakers are driven by the same 3000 Hz sine wave from the audio oscillator, which is shown on the◙top trace of the oscilloscope. The standing wave pattern, observed by sliding a microphone along the optical rail between the speakers, is displayed on the lower trace.◙
References
Robert R. Meijer, Demonstrations on Standing Sound Waves, AJP 16, 360, (1948). ◙Francis W. Sears, Measurement of the Wavelength of Sound Wave, TPT 3, 79, (1965). ◙S. S. Lesty, A Method for Measuring the Sound Wavelength in Gases, AJP 31, 996-98, (1963). ◙J. Rekveld, On the Teaching of "Stand Waves," AJP 26, 159-163, (1958). ◙Directions For Use of Small Speaker, Leybold Heraeus 58006.
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See pagesh1. nature of sound
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See pagesh2. wave properties of sound
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See pagesh3. standing sound waves
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See pagesh4. music
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See pagesh5. the ear
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See pagesh6. the voice
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See pagesh1. nature of sound
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See pagesh2. wave properties of sound
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See pagesh3. standing sound waves
-
See pagesh4. music
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See pagesh5. the ear
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See pagesh6. the voice