I need the answer to (c): Describe how the student accurately traces the path of the light emerging from the block through side CD.
![I need the answer to c Describe how the student accurately traces the path of the light emerging from the block through side CD class=](https://us-static.z-dn.net/files/d62/3e06e436a0a5e22f41ee3e2e8f969bf4.png)
Explanation:
i guess using a ruler.so first on the opposite side use your eye to alighn the ruler to the light from Ray box then draw a line or you can use pins and place them alighned to the Ray box an draw a line connecting the pins