DP Physics (last assessment 2024)

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Question 22M.2.HL.TZ2.a.i

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.HL.TZ2.a.i
Level HL Paper 2 Time zone TZ2
Command term Identify Question number a.i Adapted from N/A
a.i.
[Maximum mark: 1]
22M.2.HL.TZ2.a.i

In an experiment a beam of electrons with energy 440 MeV are incident on oxygen-16 O816 nuclei. The variation with scattering angle of the relative intensity of the scattered electrons is shown.

Identify a property of electrons demonstrated by this experiment.

[1]

Markscheme

wave properties ✓


Accept reference to diffraction or interference.

Examiners report

ai) Well answered.

aii) Well answered.

aiii) This was generally well done but quite a few attempted the small angle approximation. Probably worth a mention in the report.

b) Most gained credit from the first alternative solution, trying to use the data as the question intended. There were the inevitable slips and calculator mistakes. Most got the fourth mark.

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