A series of free GCSE/IGCSE Physics Notes and Lessons.
What is meant by the half-life of a radioactive isotope?
How to determine the half-life of a radioactive isotope?
How to calculate the decrease in radioactive count-rate after a given number of half-lives?
What is meant by background radiation?
Describe two natural and two man-made sources of background radiation.
What is the unit of radiation dose?
Half Life and Background Radiation
Background radiation and sources.
How to read half life graphs?
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