1. Plane Mirrors and the Law of Reflection Dee Luo and Jasmine Raskas

2. Part 1 Purpose: Determine the relationship between the angle of incidence and angle of reflection. Hypothesis: The angle of incidence is the same as the angle of reflection.

3. Part 1 - Diagrams Plane Mirror Angle of Incidence Angel of Reflection Incidence Ray Reflection Ray

4. Part 1 - Diagrams Plane Mirror Polar Grid Light Source

5. Part 1 - Data

6. Part 1 - Graph

7. Part 1 – Mathematical Analysis θ R  Angle of Reflection θi  Angle of Incidence θ R ∝ θ I θ R = k θ I k = 0.997 ( calculated by logger pro) θ R = (0.997) θ I

8. Part 1 – Error Analysis Accepted Value: 1 Experimental Value:.997 Absolute Error: |Acc Value-Exp Value| |1-.997| 0.003 Relative Error: |Acc Value-Exp Value|/Acc Value * 100 |1-.997|/1* 100 0.3% Sources of Error: The angle of the mirror was not perpendicular to the laser. The markings on the given paper were not consistent.

9. Part 2 Purpose: Determine the relationship between the object distance and image distance. Hypothesis: The object distance will be equal to the image distance.

10. Part 2 - Diagrams Object DistanceImage Distance Object Image

11. Part 2 - Diagrams Plane Mirror Object Distance Object Image Distance

12. Part 2 - Data

13. Part 2 - Graph

14. Part 2 – Mathematical Analysis Do  Object Distance Di  Image Distance Di ∝ Do Di=k Do K=0.999 (calculated by logger pro) Di=(0.999) Do

15. Part 2 – Error Analysis Accepted Value: 1 Experimental Value:.999 Absolute Error: |Acc Value-Exp Value| |1-.999| 0.001 Relative Error: |Acc Value-Exp Value|/Acc Value * 100 |1-.999|/1 * 100.01% Sources of Error: The mirror was difficult to see through It was hard to make the marking without moving the mirror The mirror was not completely perpendicular to the page

16. Part 3 Purpose: Determine the relationship between the object height and image height. Hypothesis: The object height will be equal to the image height.

17. Part 3 - Diagrams Object Height Image Height ObjectImage

18. Part 3 - Diagrams Plane Mirror Object Height Object Image Height

19. Part 3 - Data

20. Part 3 - Graph

21. Part 3 – Mathematical Analysis Ho  Object Height Hi  Image Height Hi ∝ Ho Hi=k Ho K=0.995 Hi=(0.995) Ho

22. Part 3 – Error Analysis Accepted Value: 1 Experimental Value:.995 Absolute Error: |Acc Value-Exp Value| |1-.995| 0.005 Relative Error: |Acc Value-Exp Value|/Acc Value * 100 |1-.995|/1 * 100.05% Sources of Error: The mirror was difficult to see through It was hard to make the marking without moving the mirror The mirror was not completely perpendicular to the page