DP Physics (last assessment 2024)

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Question 18N.3.SL.TZ0.a

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Date November 2018 Marks available [Maximum mark: 3] Reference code 18N.3.SL.TZ0.a
Level SL Paper 3 Time zone TZ0
Command term Draw, Label Question number a Adapted from N/A
a.
[Maximum mark: 3]
18N.3.SL.TZ0.a

The refractive index of glass decreases with increasing wavelength. The diagram shows rays of light incident on a converging lens made of glass. The light is a mixture of red and blue light.

On the diagram, draw lines to show the rays after they have refracted through the lens. Label the refracted red rays with the letter R and the refracted blue rays with the letter B.

[3]

Markscheme

each incident ray shown splitting into two ✔

each pair symmetrically intersecting each other on principal axis ✔

for red, intersection further to the right ✔

For MP3, at least one of the rays must be labelled.

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