Questions are labeled during my explanation :D
Step-by-step explanation:
1a. 5
b. 14
c. 24.666666666667 (you can round it to 25)
d. 30
e. 36.666666666667 (you can round this to 37)
2. The angle if refraction is always less than the angle of incidence as shown in the table. If you were to calculate the averages of all 3 test, it would still be smaller than the angle of incidence.
3. The angle of refraction is always less than the angle of incidence because the light ray must be moving from a optical density than air hence the light ray could seem bended. This is because the the speed of a wave is determined by the medium through it is passing. When light speeds up as it passes from one material to another, the angle of refraction tends to be larger than the angle of incidence. An example of this would be when light passes from water to air or glass to water. This change also makes the image look shifted to the side.
omgg hope you found this helpful it feel awesome to help others but now imma catch some sleep its nearly 1 am here. Have a great day!!!! <33