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Abstract:

Diffraction of light by an ultrasonic phase grating enables a direct measurement of the wavelength of acoustic waves in liquids. If the acoustic frequency is known independently it can be combined with the measured acoustic wavelength to determine the speed of sound in liquid. The method of Debye and Sears based on a visual display of the diffraction pattern on a distant screen is used. Measurements carried out with a He-Ne laser and an ultrasonic nebulizer provide an excellent experiment for an undergraduate laboratory with a minimum of equipment. A sound velocity of 1536 m/s with an uncertainty of 1% is obtained for distilled water. © 2002 American Association of Physics Teachers.

Registro:

Documento: Artículo
Título:Undergraduate experiment to measure the speed of sound in liquid by diffraction of light
Autor:Luna, D.A.; Real, M.A.; Durán, D.V.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II Ciudad Universitaria 1428, 1428 Capital Federal, Argentina
Año:2002
Volumen:70
Número:8
Página de inicio:874
Página de fin:875
DOI: http://dx.doi.org/10.1119/1.1491263
Título revista:American Journal of Physics
Título revista abreviado:Am. J. Phys.
ISSN:00029505
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00029505_v70_n8_p874_Luna

Referencias:

  • Debye, P., Sears, F.W., Scattering of light by supersonic waves (1935) Proc. Natl. Acad. Sci. Wash, 18, pp. 409-413
  • Bergmann, L., (1938) Ultrasonics and their Scientific and Technical Applications, pp. 59-71. , Wiley New York
  • Raman, C.V., Nagendra Nath, N.S., The diffraction of light by high frequency sound waves (1935) Proc. Ind. Acad. Sci. (A), 2, pp. 406-413
  • Kang, P., Young, F.C., Diffraction of laser light by ultrasound in liquid (1972) Am. J. Phys, 40, pp. 697-703
  • Neeson, J.F., Austin, S., Sound velocĹty and diffraction intensity measurements based on Raman-Nath theory of the interaction of light and ultrasound (1975) Am. J. Phys, 43, pp. 984-986
  • Crawford, F., Jr., (1994) Waves Berkeley Physics Course, 3, pp. 169-187. , Reverié Barcelona Chap. 4 pp
  • Handbook of Chemistry and Physics 78th ed. Sec. 3 p. 157 and Sec. 14 p. 37

Citas:

---------- APA ----------
Luna, D.A., Real, M.A. & Durán, D.V. (2002) . Undergraduate experiment to measure the speed of sound in liquid by diffraction of light. American Journal of Physics, 70(8), 874-875.
http://dx.doi.org/10.1119/1.1491263
---------- CHICAGO ----------
Luna, D.A., Real, M.A., Durán, D.V. "Undergraduate experiment to measure the speed of sound in liquid by diffraction of light" . American Journal of Physics 70, no. 8 (2002) : 874-875.
http://dx.doi.org/10.1119/1.1491263
---------- MLA ----------
Luna, D.A., Real, M.A., Durán, D.V. "Undergraduate experiment to measure the speed of sound in liquid by diffraction of light" . American Journal of Physics, vol. 70, no. 8, 2002, pp. 874-875.
http://dx.doi.org/10.1119/1.1491263
---------- VANCOUVER ----------
Luna, D.A., Real, M.A., Durán, D.V. Undergraduate experiment to measure the speed of sound in liquid by diffraction of light. Am. J. Phys. 2002;70(8):874-875.
http://dx.doi.org/10.1119/1.1491263