THE RELATIONSHIP BETWEEN THE SALINITY OF WATER AND THE REFRACTIVE INDEX OF WATER

Or, Bartu (2014) THE RELATIONSHIP BETWEEN THE SALINITY OF WATER AND THE REFRACTIVE INDEX OF WATER. Other thesis, TED ANKARA KOLEJİ.

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Abstract

This extended essay is an examination on how does the refractive index of water get effected by varying salt concentration of water. In order to see the effect of salinity of water on refractive index it has, an experiment was carried out. A laser light is pointed towards the semi circular beakers center and the beaker is filled with water which include different concentration of salt, such as 5%, 10%, 15%, 20%, 25%. By measuring the angles that the laser light came and the light goes out from the beaker, using the Snell Law, the refractive indexes of each concentration is measured. Also a computer program (Logger Pro 3.8) was used in order to draw the graph of salt concentration versus refractive index. By the help of this graph the relationship between salt concentration and refractive index determined. As a result of the experiment it is observed that there is a direct correlation between the salt concentration and refractive index. This is proved with the graph by using the equation which proves it is a linear, increasing graph. Then the sources of errors are evaluated and which errors are systematic and random is determined. A relationship with the result that has come out from the experiment and nature is made and the effect of salinity in nature is discussed. Several advices and tips are given in order to make the experiment better.

Item Type: Thesis (Other)
Additional Information: IB Notu: C
Uncontrolled Keywords: salinity of water, refractive index
Subjects: Q Science > QC Physics
Depositing User: Users 114 not found.
Date Deposited: 09 Sep 2014 12:01
Last Modified: 09 Sep 2014 12:01
URI: http://tedprints.tedankara.k12.tr/id/eprint/464

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