Experimental Design: A ray box with a single slit will be shone through a semicircular dish through air, water, and syrup, on top of polar graph paper to see how the light will bend. Procedure: A semicircular dish was placed at the centre of the polar graph paper, with its flat edge along the horizontal centre line. The 0 – 180 degree line on the polar graph paper acted as the normal and passed through the centre of the semicircular dish. Light rays were projected at the centre of the polar graph paper. The dish was then filled with water, and light was projected by a single ray of light at the centre of the dish at an angle of incidence of 0 degrees. The corresponding angle was measured. Then, that was repeated, but for angles of incidence of 10 – 60 degrees. The measure of the angle of the refracted ray in the dish was always measured with respect to the normal. Lastly, these steps were repeated expect syrup was placed in the dish.
Refraction Of Light In Different Media Angle of incidence in air
| 0° | 10° | 20° | 30° | 40° | 50° | 60° |
Angle of incidence in water
| 0° | 8° | 16° | 22° | 28° | 35° | 41° |
Angle of incidence in syrup
| 0° | 10° | 15° | 20° | 26° | 32° | 37° |
Analysis and Evaluation: The refracted ray bent toward the normal in the syrup. The angles of refraction for water and syrup for the same angles of incidence were only slightly different. For example, the angle of refraction for the angle of incidence in water was 8°, while in syrup it was 10° . These results show that the speed of light in water or syrup is significantly slower than the speed of light in air. The speed of light slowed down more in syrup, than in water. Conclusion: This lab taught that when light passes through different mediums, the speed of light an slow down significantly. This knowledge could be used for future in different labs such as finding the angles of incidence through even more mediums, or the refraction of laser light through different media.
The Term Paper on Its Just Syrup And Water
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