DP Physics (first assessment 2025)

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Question 22M.1A.HL.TZ1.40

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.HL.TZ1.40
Level HL Paper 1A Time zone TZ1
Command term Question number 40 Adapted from N/A
40.
[Maximum mark: 1]
22M.1A.HL.TZ1.40

The decay constant, λ, of a radioactive sample can be defined as

A.  the number of disintegrations in the radioactive sample.

B.  the number of disintegrations per unit time in the radioactive sample.

C.  the probability that a nucleus decays in the radioactive sample.

D.  the probability that a nucleus decays per unit time in the radioactive sample.

[1]

Markscheme

D

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