Half-life and Decay — MCQ Practice
Interactive MCQ Practice
Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 5 questions available.
Which of the following statements about the half-life of a radioactive substance is INCORRECT?
A sample of a radioactive isotope has a half-life of 10 days. If the initial activity of the sample is 800 Bq, what will be its activity after 30 days?
Consider the following statements regarding Carbon-14 dating: 1. It is used to determine the age of non-living inorganic materials. 2. Its effective dating range is up to approximately 50,000-60,000 years. 3. The method relies on the decay of Carbon-14 to Nitrogen-14. Which of the statements given above is/are correct?
Which of the following medical isotopes is correctly matched with its primary application and half-life?
If the decay constant (λ) of a radioactive isotope is 0.0231 day⁻¹, what is its approximate half-life?