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Question 22M.1.HL.TZ1.39

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1.HL.TZ1.39
Level HL Paper 1 Time zone TZ1
Command term Question number 39 Adapted from N/A
39.
[Maximum mark: 1]
22M.1.HL.TZ1.39

What is evidence for wave–particle duality?

A.  Line spectra of elements

B.  Electron-diffraction experiments

C.  Rutherford alpha-scattering experiments

D.  Gamma-ray spectra

[1]

Markscheme

B

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This question was generally well answered by HL candidates.

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