A simple experiment on diffraction of light by interfering liquid surface waves

American Journal of Physics

Volumn 73, Issue 8, 2005, Pages 725-729

  Barik, Tarun Kr ^a   Roy, Anushree ^a   Kar, Sayan ^a  

^a INDIAN INSTITUTE OF TECHNOLOGY   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 25144433851     PISSN: 00029505     EISSN: None     Source Type: Journal    
DOI: 10.1119/1.1870032     Document Type: Article

References (24)

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20. Spatial damping of the surface acoustic waves is measured by the decay constant δ= 3α/4Ω, where η is the viscosity of the liquid (see Ref. 13). For acoustic waves on the surface of water at 220 Hz, δ44≅ mm, which is much larger than the spot size of the laser beam (1.8 mm).
21. The wave function for two-dimensional surface waves is, in general, more complicated. However, for our purposes here, the sinusoidal form is adequate and produces reasonable results.
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