Question 1
A student investigated the refraction of light by a glass block.
Figure 1 shows the protractor used to measure the angles of incidence and the angles of refraction.
What is the resolution of the protractor used to measure the angles?
[1 mark]
Table 1 shows the results.
Describe a method the student could have used to obtain the data in Table 1.
You may include a labelled diagram.
[6 marks]
Figure 2 shows some of the results.
The student measured the angles of refraction for two additional angles of incidence.
Table 2 shows the additional results.
Complete Figure 2.
You should:
• plot the results from Table 2
• draw the line of best fit.
[2 marks]
How does Figure 2 show that the angle of refraction is not directly proportional to the angle of incidence?
[1 mark]
Figure 3 shows a diagram of a car headlight.
The headlight has a lamp, a reflective surface and a transparent cover.
Figure 4 shows a ray of light incident on the reflective surface.
Complete Figure 4 to show the reflected ray of light.
You should include the normal line at the point where the incident ray meets the reflecting surface.
[2 marks]
Rays of light pass through the transparent cover of the headlight.
Which diagram shows how a ray of light passes through the transparent cover?
Tick () one box.
[1 mark]