Paper 2 H - SAMPLE SET 1 Q5
5) Figure 4 shows a reflex in the iris of the human eye in response to changes in light levels.
5.1) Describe the changes in the pupil and iris going from A to B in Figure 4.
Explain how these changes occur.
Refer to the changes in light level in your answer. [4 marks]
5.2) Some people wear glasses to improve their vision.
Figure 5 shows light entering the eye in a person with blurred vision.
Figure 6 shows how this condition is corrected with glasses.
Explain how these changes occur.
Refer to the changes in light level in your answer. [4 marks]
5.2) Some people wear glasses to improve their vision.
Figure 5 shows light entering the eye in a person with blurred vision.
Figure 6 shows how this condition is corrected with glasses.
Compare Figure 5 and Figure 6.
Explain how the blurred vision is corrected. [2 marks]
(Total for Question 4 = 6 marks)
Explain how the blurred vision is corrected. [2 marks]
(Total for Question 4 = 6 marks)