Radioactivity

Physics — topic guides, questions, and exam chapters with this tag

Topic guide

Radioactivity — Alpha, Beta, Gamma and Half-Life

Understand radioactivity from first principles with intuitive explanations and solved problems.

Solved questions

Half-life of substance is 5 years — what fraction remains after 15 years

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Activity of sample drops to 1/8 in 30 days — find half-life

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