ESAT (Engineering and Science Admissions Test) · Physics
Radioactivity and nuclear physics
6 practice questions, each with the answer and an explanation.
Practise Radioactivity and nuclear physics now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 6 questions
- The activity of a source falls from to in days. What is its half-life?
- Carbon-14 () undergoes beta-minus decay. Which nucleus is formed?
- A radioactive isotope has a half-life of hours. What fraction of the original nuclei remains after hours?
- A sample contains of a radioactive isotope. After three half-lives how much of the isotope remains?
- Uranium-238 () decays by emitting an alpha particle. What are the mass number and atomic number of the daughter nucleus?
- Which type of radiation is stopped by a sheet of paper?
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