Laboratory simulation: Refraction Go to link: https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_en.html Theory / Definitions 1. Optical (or transparent) medium: An optical medium is a material through which electromagnetic waves propagate. It is a form of transmission 4. Denote the angles of incidence and refraction . medium. Index of refraction: : In optics the refractive index or index of refraction n of a i substance is a dimensionless number that describes how light, or any other radiation, propagates through that medium. 2. Refraction: Refraction is the change in r direction of a wave due to a change in its transmission medium. Refraction is essentially a surface phenomenon. The phenomenon is mainly in governance to the law of conservation of energy and momentum. Experiment 1: Dependence of angle of refrac tion on the angle of incidence Laser light falls from air to a transparent medium. Prediction: What do we expect to happen to the angle of refraction as the index of refraction of the transparent medium increases? Explain. ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ Place the laser so that the angle of incidence equals 50 degrees. Measure the angle of refraction for various n and record in Table 1. Table 1: Angle of refraction vs the index of refraction Measurement 1 2 3 4 5 6 7 Index of refraction 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Angle of refraction (degrees) Use Excel or Google sheets to plot the angle of refraction vs the index of refraction. Insert your graph below. Graph 1: Angle of refraction vs the index of refraction Conclusion: Compare your result to the prediction: Experiment 2: Dependence of the angle of refraction on the angle of incidence Predictions/Hypothesis: What do we expect to happen to the angle of refraction as the angle of incidence increases? Explain. _______________________________________________________________________________________________ _______________________________________________________________________________________________ ______________________________________________________________________________________________ Measure the angle of refraction for various angles of incidents. Table 2: Angle of refraction vs angle of incidence Measurement 1 2 3 4 5 6 7 8 Angle of incidence (degrees) 11 20 30 40 50 60 70 80 Angle of refraction (degrees) Plot the graph of angle of refraction vs angle of incidence. Insert your graph below. Graph 2: Angle of refraction vs angle of incidence Conclusion: Compare your result to the prediction: Conclusion: Theory predictions versus the results of the 2 experiments. A number of scientists between the 10th and the 17th centuries (Sahl, Snellius, Descartes) concluded that the following formula should relate the angle of incidence with the angle of refraction : Explain if the results of the 2 simulated experiments above are compatible with the formula. Laboratory simulation: Refraction Go to link: https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_en.html Theory / Definitions 1. Optical (or transparent) medium: An optical medium is a material through which electromagnetic waves propagate. It is a form of transmission 4. Denote the angles of incidence and refraction . medium. Index of refraction: : In optics the refractive index or index of refraction n of a i substance is a dimensionless number that describes how light, or any other radiation, propagates through that medium. 2. Refraction: Refraction is the change in r direction of a wave due to a change in its transmission medium. Refraction is essentially a surface phenomenon. The phenomenon is mainly in governance to the law of conservation of energy and momentum. Experiment 1: Dependence of angle of refrac tion on the angle of incidence Laser light falls from air to a transparent medium. Prediction: What do we expect to happen to the angle of refraction as the index of refraction of the transparent medium increases? Explain. ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ Place the laser so that the angle of incidence equals 50 degrees. Measure the angle of refraction for various n and record in Table 1. Table 1: Angle of refraction vs the index of refraction Measurement 1 2 3 4 5 6 7 Index of refraction 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Angle of refraction (degrees) Use Excel or Google sheets to plot the angle of refraction vs the index of refraction. Insert your graph below. Graph 1: Angle of refraction vs the index of refraction Conclusion: Compare your result to the prediction: Experiment 2: Dependence of the angle of refraction on the angle of incidence Predictions/Hypothesis: What do we expect to happen to the angle of refraction as the angle of incidence increases? Explain. _______________________________________________________________________________________________ _______________________________________________________________________________________________ ______________________________________________________________________________________________ Measure the angle of refraction for various angles of incidents. Table 2: Angle of refraction vs angle of incidence Measurement 1 2 3 4 5 6 7 8 Angle of incidence (degrees) 11 20 30 40 50 60 70 80 Angle of refraction (degrees) Plot the graph of angle of refraction vs angle of incidence. Insert your graph below. Graph 2: Angle of refraction vs angle of incidence Conclusion: Compare your result to the prediction: Conclusion: Theory predictions versus the results of the 2 experiments. A number of scientists between the 10th and the 17th centuries (Sahl, Snellius, Descartes) concluded that the following formula should relate the angle of incidence with the angle of refraction : Explain if the results of the 2 simulated experiments above are compatible with the formula.
Purchase answer to see full attachment