There are 2 dotted lines for each light source.The 2 lines represent the two most important rays of light, the rays of light that just barely touch/miss the edge of the object. All rays to one side of this dotted line/boundary will hit the object and not make it through to light the left wall, and all rays to the other side of this boundary will make it through to light the left wall. Use this information to improve your answer to 4.a. c.Now click the box next to a second light (green). A second light source should appear, (black dot turns to green dot) with additional ray traces. How many different colors (of light) appear on the left wall (hint, black is not a color, it is the absences of light)? Can you explain what you see in terms of the 4 regions on the wall, the 2 light sources and the object? The following questions may help: i. Why is the object yellow? What light(s) must be reaching it in order for it to appear yellow? ii. Why is the yellow region yellow? What light(s) must be blocked by the object (if any) and which light(s) must be reaching the region in order for it to appear yellow? iii. Why is the red region red? What light(s) must be blocked by the object (if any) and which light(s) must be reaching the region in order for it to appear red