DP Physics (last assessment 2024)

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Question 22M.1.HL.TZ2.30

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1.HL.TZ2.30
Level HL Paper 1 Time zone TZ2
Command term Question number 30 Adapted from N/A
30.
[Maximum mark: 1]
22M.1.HL.TZ2.30

In two different experiments, white light is passed through a single slit and then is either refracted through a prism or diffracted with a diffraction grating. The prism produces a band of colours from M to N. The diffraction grating produces a first order spectrum P to Q.

What are the colours observed at M and P?

[1]

Markscheme

A

Examiners report

This has low discrimination and the difficulty index suggests candidates found it hard with the incorrect option C being the most popular. The spreading of colours and formation of a spectrum (or rainbow) is something that is covered during an introductory course in physics and then developed in refraction and diffraction.

Syllabus sections