Refraction through a rectangular block (including wave front diagrams)

12 questions

1. In a wavefront diagram, what does a wavefront show?
2. Which statement about light is correct?
3. Match the terms with their meanings.
4. In a ray diagram, the ray that approaches a surface or boundary is called the ___ ray.
5. This ray diagram represents a light wave hitting a mirror. Which diagram shows the normal line drawn correctly (as a dashed line)?
6. The ray diagram represents a light wave reflecting from a mirror. A student has placed a protractor over the diagram. What is the angle of incidence?
7. What is the angle of refraction?
8. The ray diagram shows the refraction of a light wave when it crosses a boundary between two materials. Which of these statements are correct for light at a boundary from air into a transparent block?
9. A student measures the angle of incidence and the angle of refraction at a boundary from air into a transparent block. The table shows the results. Which of these statements are correct?
10. Which of these ray diagrams shows a possible path of a ray through a plastic block?
11. The diagram represents the refraction of a light wave as it passes from glass into air. It shows rays and wavefronts. Which of the statements are correct?
12. A light wave travels from a medium in which it is slower into a medium in which it is faster. The vertical black line shows the boundary between the two media. Which diagram is correct?

License: OGL