Compare your calculated n2 with the given index of refraction, nglass. Do they agree? Explain why it does or doesn’t. Procedure: Part B Setup Reset simulation and choose A” if you are at an even lab station or choose B” “Mystery “Mystery if you are at an odd lab station. Choose the protractor and set the laser to an angle of incidence, at 30°. θ1, Ignore the reflected ray (the ray that remains in air). Trial the protractor, measure the angle of refraction, of the laser and record in Table 2. θ2, Repeat steps 2 and 3 for angles of incidences of 50° and 70° of your own choosing. Record the results in Table 2. Calculate sin and sin for each trial. Record the results in Table 2. θ1 θ2 Table 2 (degrees) (degrees) Sin Sin θ1 θ2 θ1 θ2 1 30 2 40 3 50 4 60 5 70 Draw a graph of the Sin vs. Sin on the grid below. Draw in your best-fit line and find the θ2 θ1 slope. Show slope work below. What does your slope represent? Using the chart below of various indices of refraction for various media, identify your mystery material you had in your experiment. Find the percent error of your observed value (slope) using the identified index of refraction as your accepted value. Analysis Questions: Substitute the average of the index of refraction that you measured in Part A into the equation for index of refraction and calculate the speed of light in the glass. Show work.
Compare your calculated n2 with the given index of refraction, nglass. Do they agree? Explain why it does or doesn’t. Procedure: Part B Setup Reset simulation and choose “Mystery A” if you are at an even lab station or choose “Mystery B” if you are at an odd lab station. Choose the protractor and set the laser to an angle of incidence, θ1, at 30°. Ignore the reflected ray (the ray that remains in air). the protractor, measure the angle of refraction, θ2, of the laser and record in Table 2. Repeat steps 2 and 3 for angles of incidences of 50° and 70° of your own choosing. Record the results in Table 2. Calculate sin θ1 and sin θ2 for each trial. Record the results in Table 2. Table 2 Trial θ1 (degrees) θ2 (degrees) Sin θ1 Sin θ2 1 30 2 40 3 50 4 60 5 70 Draw a graph of the Sin θ2 vs. Sin θ1 on the grid below. Draw in your best-fit line and find the slope. Show slope work below. What does your slope represent? Using the chart below of various indices of refraction for various media, identify your mystery material you had in your experiment. Find the percent error of your observed value (slope) using the identified index of refraction as your accepted value. Analysis Questions: Substitute the average of the index of refraction that you measured in Part A into the equation for index of refraction and calculate the speed of light in the glass. Show work.
refraction_honors_lab.docx