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The lenses used in refracting telescopes can cause chromatic aberration - AQA - A-Level Physics - Question 1 - 2019 - Paper 4
Question 1
The lenses used in refracting telescopes can cause chromatic aberration. Complete Figure 1 to show how a lens produces chromatic aberration. Figure 1 white light ... show full transcript
Worked Solution & Example Answer:The lenses used in refracting telescopes can cause chromatic aberration - AQA - A-Level Physics - Question 1 - 2019 - Paper 4
Step 1
Complete Figure 1 to show how a lens produces chromatic aberration.
Answer
To illustrate the chromatic aberration caused by a lens, draw two parallel rays of white light entering the lens. Show that the blue light rays bend more sharply than the red light rays as they pass through the lens. Indicate by arrows the paths of the blue and red rays converging at different points after the lens. Label the focal points appropriately, indicating that the blue rays focus closer to the lens than red rays.