Where the laser strikes the surface, please imagine the imaginary line called the normal shown as a light dotted line here. This normal is critically important as it provides a reference point so we can communicate effectively about which way the light bends. The normal is, by definition, perpendicular to the surface at the interface between the two media (air and water) and occurs exactly at the point where the light strikes the surface of the 2nd media. Go to https://phet.colorado.edu/en/simulations/bending-light (a PhET simulation). You should see a choice of 3 options - hit "intro". Click on the red dot on the laser to turn it on. a. When light hits the surface of water, some light is reflected (bounced) back up, and some light is refracted (bent) down. First, we need to examine the reflected light (the fainter of the two beams at present). i. What appears to be the relationship between the angles that the laser light makes with the surface of the water coming towards the water (incident ray) and the angle that the laser light makes with the surface of the water coming away from the water (reflected ray)? Is this relationship always true as long as reflected light is present? Move the laser around to see. Test your relationship with the protractor - write down your data and conclusion