Aim: To show light refracts as it passes from one medium to another.
Method: Using the following equipment, trace the path of a light ray as it passes through a rectangular plastic block.
To assist with tracing the path, put a piece of A4 paper under the plastic block. Mark two crosses on the incident light ray and two crosses on the emerging light ray. Trace around the plastic block and then join up the lines. Label the diagram and then cut and glue it into your book as your results.
Results: Glue your diagram from the experiment here.
Write a conclusion explaining what happened. Ensure you discuss:
- Parallel rays
- The speed of light in different mediums / regions