CAIE A-Level Physics A2 23.2.3 Activity and Decay Constant and Recall and Use a N Topic Practice

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Question 1

[Maximum number: 1]

Radioactive isotope X decays to isotope Y .

A sample contains only nuclei of X at time t=0. Fig. 9.1 shows the variation with t of the numbers of nuclei of X and of Y as the sample decays.

Fig. 9.1

Fig. 9.1

State the name of the quantity represented by the magnitude of the gradient of line X in Fig. 9.1.

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