Refraction Lab Essay

444 Words2 Pages
Aim: The aim of this experiment is to understand reflection and refraction and how they vary with different matters. Data/Results: The hand drawn images are attached to this lab on a separate sheet of paper. Questions: 1. Based on both of your observations on reflection, what can you say about the relationship between the angle of incidence and the angle of reflection? The angles of incidence and reflection are both the same. 2. Does the color of the light affect the relationship that you determined in Question 1? No, the color of light does not affect the relationship determined in question 1. 3. Does the color of the light affect your focal length? No, the color of light does not affect the focal length. 4. Notice that the angle of incidence at the first surface is equal to the angle of refraction at the second surface. Prove algebraically (using Snell’s Law twice) why this is true. n1sin θ1=n2sin θ2 n2sin θ2=n1sin θ3 n1sin θ1=n1sin θ3 sin θ1=sin θ3 5. Do different colors refract at different angles? No, difference colors do not refract at different angles. 6. Do you still get the same focal lengths if you turn the lenses around to face the other way? Did you expect this result? Yes, it was the same focal length even when the lenses were turned around. We did expect this because the amount of light going through the lens is still the same. 7. Which color refracts the most? The least? Violet refracted the most, whereas red refracted the least. 8. Re-examine your answer to Question #5. Re-answer the question now. What is different about this situation? Yes, different colors do refract at different angles. The angle of the light leaving the rhombus changed in this situation; it was approximately close to 90º. 9. What do you see when the paper reaches the focal point? When the paper reaches the focal point, a white light is

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