Study the Liquid Surface Capillary Wave Profile by Optical Method
Dibyendu Chowdhury1, Sunandan Bhunia2, Tarun Kumar Barik3

1Dibyendu Chowdhury, Department of Electronics & Communication Engineering, Haldia Institute of Technology, Haldia
2Sunandan Bhunia, Department of Electronics & Communication Engineering, Haldia Institute of Technology, Haldia
3Tarun Kumar Barik, School of Applied Sciences & Humanities, Haldia Institute of Technology, Haldia
Manuscript received on January 01, 2013. | Revised Manuscript received on January 02, 2013. | Manuscript published on January 05, 2013. | PP: 386-390 | Volume-2, Issue-6, January 2013.
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this article, we describe a simple optics-based non-destructive experimental technique devised with the necessary background theoretical formulation to study the liquid properties like surface tension and surface capillary wave profile like wavelength and phase velocity of pure and impure water. Experimentally, we have estimated the surface tension of pure water using this optical method is (73.6+ 1.5) dyne/cm. We have also studied the variation of surface tension of water with adding organic and inorganic impurities using this same method. Finally we estimate the wavelength and phase velocity of capillary wave using the measured values of surface tensions of the above liquids. 
Keywords: Fraunhofer diffraction, Surface tension, Capillary wave profile