DP Physics (first assessment 2025)

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Question 22M.1A.SL.TZ2.25

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.SL.TZ2.25
Level SL Paper 1A Time zone TZ2
Command term Question number 25 Adapted from N/A
25.
[Maximum mark: 1]
22M.1A.SL.TZ2.25

A radioactive nuclide X decays into a nuclide Y. The graph shows the variation with time of the activity A of X. X and Y have the same nucleon number.

What is true about nuclide X?

A.  alpha (α) emitter with a half-life of t

B.  alpha (α) emitter with a half-life of 2t

C.  beta-minus (β−) emitter with a half-life of t

D.  beta-minus (β−) emitter with a half-life of 2t

[1]

Markscheme

D

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