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Date May 2018 Marks available 1 Reference code 18M.1.HL.TZ2.40
Level Higher level Paper Paper 1 Time zone 2
Command term Question number 40 Adapted from N/A

Question

Two samples X and Y of different radioactive isotopes have the same initial activity. Sample X has twice the number of atoms as sample Y. The half-life of X is T. What is the half-life of Y?

A.     2T

B.     T

C.      T 2

D.      T 4

Markscheme

C

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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