A nuclide has a half-life of 300 μs300\ \mu\text{s}300 μs. The decay constant for this nuclide lies between:
101 s−110^1\text{ s}^{-1}101 s−1 and 102 s−110^2\text{ s}^{-1}102 s−1
102 s−110^2\text{ s}^{-1}102 s−1 and 103 s−110^3\text{ s}^{-1}103 s−1
103 s−110^3\text{ s}^{-1}103 s−1 and 104 s−110^4\text{ s}^{-1}104 s−1
104 s−110^4\text{ s}^{-1}104 s−1 and 105 s−110^5\text{ s}^{-1}105 s−1
128 exam-style questions on AQA A Level Physics Radioactivity (A-level only), covering Rutherford scattering (A-level only), $\alpha$ , $\beta$ and $\gamma$ radiation (A-level only), Radioactive decay (A-level only), Nuclear instability (A-level only), Nuclear radius (A-level only), Mass and energy (A-level only), Induced fission (A-level only), and Safety aspects (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.