In: Physics
| angel of incedence | angle of reflection | average angle of reflection | ||||
| clockwise | counterclockwise | |||||
| 10 | 10 | 10 | 10 | |||
| 20 | 20 | 20 | 20 | |||
| 30 | 30 | 30 | 30 | |||
| 40 | 40 | 40 | 40 | |||
| 50 | 50 | 50 | 50 | |||
| 60 | 60 | 60 | 60 | |||
| 70 | 70 | 70 | 70 | |||
| 80 | 80 | 80 | 80 | |||
| acrylic lens | Glass lens | |||||
| angel of incedence | angle of reflection | average angle of reflection | angle of reflection | average angle of reflection | ||
| clockwise | counterclockwise | clockwise | counterclockwise | |||
| 10 | 8 | 5 | 6.5 | 7 | 7 | 7 |
| 20 | 15 | 12 | 13.5 | 13 | 13 | 13 |
| 30 | 21 | 18 | 19.5 | 20 | 20 | 20 |
| 40 | 27 | 25 | 26 | 25 | 25 | 25 |
| 50 | 32 | 30 | 31 | 31 | 31 | 31 |
| 60 | 37 | 35 | 36 | 35 | 35 | 35 |
| 70 | 40 | 38 | 39 | 38 | 38 | 38 |
| 80 | 43 | 40 | 41.5 | 40 | 40 | 40 |
| acrylic | glass | unknown fluid |
| Slope from the graph | Slope from the graph | Slope from the graph |
| index of refraction n= | index of refraction n= | index of refraction n= |
| %error= | %error= | %error= |
| critical angle | critical angle | critical angle |
| index of refraction n= | index of refraction n= | index of refraction n= |
| %error= | %error= | %error= |





NOTE: 1st graph plot is for
acrylic, 2nd is for glass. The slope are shown in graph itself. No
plot for unknown sample is needed as it is clear that slope=1.