The Effect Of Temperature Of Glycerin On The Index Of Refraction

Aim:-
To investigate the effect of changing the temperature of glycerin on the index of refraction. In this experiment I will be using a simple method, which needs the following materials 40ml of glycerin in a beaker, protractor, a pencil, a laser, a paper to draw boundaries, circular plastic plates, hotplate, ruler and a digital thermometer. In this experiment 1 trial will be conducted for glycerin with 70 Celsius degrees ,66,62,58, and another trial with 10 Celsius degrees.
Scientific Background:-
In this experiment I have chosen to investigate the effect of temperature of glycerin on the index of refraction. This factor plays a major role on the index of refraction, not only that , however it changes glycerin on a cellular level. As
Furthermore, when I used glycerin with a temperature of 10 Celsius degrees, it appeared to be extremely viscous and thick. Moreover, the laser beam used was in the color of red, it appeared to be a very thin beam.

Quantitative Data:-
Table no.1 : Raw data, temperature of glycerin, in addition to sine 1, sine 2 and Sine theta 1 and sin theta 2, the medium is air to glycerin
Temperature (Celsius)
N1( Angle Degrees) ϴ1( Angle Degrees)
ϴ2 ( Angle Degrees) Sin ϴ1( Angle Degrees)
Sin ϴ 2 ( Angle
In addition I have worked on 5 different temperatures , were each were conducted within 1 trial. At the temperature of 70 Celsius degrees the viscosity appeared to be very low, and as it the temperature of glycerin continued to adjust to the room temperature I have observed that the viscosity started to increase. As every 4 temperature drops which each occurred within a handful of seconds the viscosity gradually increased. Moreover, when I used the 10 Celsius glycerin, the viscosity was extremely high. Moreover, I have found that as viscosity increases my results would change, this is because of the light beam. As the thickness of glycerin increased the light beam would pass with difficulty and it would be shortened, and would be less visible. Furthermore, I would safely presume that my hypothesis and prediction were right all along. I have noticed that by the results that have been reflected. In my hypothesis I claimed that as the temperature of glycerin increases then the viscosity decreases and the index of refraction decreases, and as temperature decreases the viscosity increases and the index of refraction increases. For example, recall table no.2 were at temperature of 70 degrees, the index of