Discussion Questions: Refraction of Light Demonstration

According to your observations, what happens to the beam of light when it hits the rectangular glass prism? When it exits?
How does the direction of light before it hits the rectangular prism compare to its direction after it exits?
Why do you think the rays bend after entering the lens? Why do you think they bend after leaving the lens?
How do the shapes of these transparent objects affect light passing through them?
Use a ray diagram to explain your observations. How might you use lenses in practical applications?