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Date May 2021 Marks available 1 Reference code 21M.1.HL.TZ1.39
Level Higher level Paper Paper 1 Time zone 1
Command term Question number 39 Adapted from N/A

Question

The graphs show the variation with time of the activity and the number of remaining nuclei for a sample of a radioactive nuclide.

What is the decay constant of the nuclide?

A.  0.7 s-1

B.  1 s-1

C.  10.7 s-1

D.  1.5 s-1

Markscheme

A

Examiners report

[N/A]

Syllabus sections

Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.2 – Nuclear physics
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Additional higher level (AHL) » Topic 12: Quantum and nuclear physics
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