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Question 18M.3.SL.TZ1.8a.iii

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Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.3.SL.TZ1.8a.iii
Level SL Paper 3 Time zone TZ1
Command term Discuss Question number a.iii Adapted from N/A
a.iii.
[Maximum mark: 3]
18M.3.SL.TZ1.8a.iii

A converging (convex) lens forms an image of an object on a screen.

(a.iii)

Light passing through this lens is subject to chromatic aberration. Discuss the effect that chromatic aberration has on the image formed on the screen.

[3]

Markscheme

refractive index depends on wavelength

light of different wavelengths have different focal points / refract differently

there will be coloured fringes around the image / image will be blurred

[3 marks]

Syllabus sections