A student draws a diagram to show the refraction of a light ray as it passes from air into water.
Ray Q is the incident ray. What are the names of line P and angle T?
Line P: __________________________________________\text{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}__________________________________________
Angle T: __________________________________________\text{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}__________________________________________
The student does an experiment to investigate how light refracts when it enters a semicircular plastic block from air through the flat face.
The equipment available is:
- Ray box with one slit
- Semicircular plastic block
- Pencil, ruler, and paper
- Protractor
Describe how the student does the experiment.
In your answer include:
- how the student sets up the equipment, aligns the ray, and marks the paths of the light rays
- what measurements the student needs to take
- a prediction of what the student will find out from their results, comparing the angle of incidence in air and the angle of refraction in the plastic.