Can you help me?

1. Go To https://phet.colorado.edu/sims/html/bending-light/latest/bending-light_en.html

2. Choose ray (Top left corner) 3. Choose Normal( Bottom left corner) 4. Choose Air as your material. 1 5. Choose Unknown A as the material. 2 6. If it is not already turned on, turn it on. 7. Select the protractor tool from the toolbox. It will be used to calculate the angle of incidence and refraction. 8. To change the angle of incidence, move the laser in an arc. 9. Vary and measure the angle of incidence over the widest possible range of values, then measure the corresponding angle of refraction. 10. Compile your results and include the sines of the angles.

11. Create a graph of sini versus sinr.

12. Determine the index of refraction of material A based on the graph.

13. Write your argument and conclusion.