Refraction Lab
Introduction:
Refraction, is the bending of a light ray when it pass from one medium to another. It occurred because the speed of the light travelled in different medium was inconsistent (Encyclopædia Britannica, 2016). Referring to the following diagram, i is the angle of incidence of light (assumed in a vacuum), and the line that is perpendicular to the surface of the medium. r is the angle of refraction which indicate the angle between the line of normal and the light ray in the medium (Encyclopædia Britannica, 2016). If a light ray travelled from a medium with a slower speed to a medium with a faster speed, then the light ray would be refracted away from the normal. If the other way around, then the light ray would be refracted towards …show more content…
Paper was placed on a desk with the container and laser placed at an angle.
3. The position of container and laser was marked on paper, the line of normal and the line of incidence.
4. The laser was shone through the container making sure that it passed through the solution.
5. The angle of refraction was recorded on the paper.
6. 5 grams of sugar was added to the solution and agitated until fully dissolved.
7. Step 4-5 was repeated.
8. Step 6, 4 and 5 were repeated until the sugar added to solution has been a total of 30 g.
9. Measure the refraction angle with a protractor and put into table and graph.
Photos:
Figure 2. The electronic weight scale weighing sugar
Figure 3. The raw data recorded
Table:
Figure 4. The Table showing the sugar concentration, solution density and the angle of refraction
Sugar added (x10^-3kg)
Sugar concentration (%)
Solution Density (g/L)
Angle of refraction (°)
0
0
1000
30
5
5
1050
32
10 …show more content…
Since increasing the sugar concentration means that the density of the solution increases. From this, it can be concluded that as the solution density increases, the angle of refraction also increase. There were two possible outliers at the 5% and 10% concentration, they could be possible random errors that occurred within this experiment. However, looking at figure 6, the outliers could have occurred only due to the scale setting in graphs. Also the overall trend demonstrated in figure 4 was an exponential increase, however that may be due to the way scale was set. Regarding to figure 6 in the appendix, the trend would be more reasonable as directly proportional, though not
Refraction, is the bending of a light ray when it pass from one medium to another. It occurred because the speed of the light travelled in different medium was inconsistent (Encyclopædia Britannica, 2016). Referring to the following diagram, i is the angle of incidence of light (assumed in a vacuum), and the line that is perpendicular to the surface of the medium. r is the angle of refraction which indicate the angle between the line of normal and the light ray in the medium (Encyclopædia Britannica, 2016). If a light ray travelled from a medium with a slower speed to a medium with a faster speed, then the light ray would be refracted away from the normal. If the other way around, then the light ray would be refracted towards …show more content…
Paper was placed on a desk with the container and laser placed at an angle.
3. The position of container and laser was marked on paper, the line of normal and the line of incidence.
4. The laser was shone through the container making sure that it passed through the solution.
5. The angle of refraction was recorded on the paper.
6. 5 grams of sugar was added to the solution and agitated until fully dissolved.
7. Step 4-5 was repeated.
8. Step 6, 4 and 5 were repeated until the sugar added to solution has been a total of 30 g.
9. Measure the refraction angle with a protractor and put into table and graph.
Photos:
Figure 2. The electronic weight scale weighing sugar
Figure 3. The raw data recorded
Table:
Figure 4. The Table showing the sugar concentration, solution density and the angle of refraction
Sugar added (x10^-3kg)
Sugar concentration (%)
Solution Density (g/L)
Angle of refraction (°)
0
0
1000
30
5
5
1050
32
10 …show more content…
Since increasing the sugar concentration means that the density of the solution increases. From this, it can be concluded that as the solution density increases, the angle of refraction also increase. There were two possible outliers at the 5% and 10% concentration, they could be possible random errors that occurred within this experiment. However, looking at figure 6, the outliers could have occurred only due to the scale setting in graphs. Also the overall trend demonstrated in figure 4 was an exponential increase, however that may be due to the way scale was set. Regarding to figure 6 in the appendix, the trend would be more reasonable as directly proportional, though not