Waec 2025 Physics Question 20
Practice objective / multiple choice question 20 from the 2025 Waec Physics examination. This question covers radioactivity, half-life .
A radioactive element of mass 16 g was isolated and stored. It was discovered that after 40 days only \( 1 g \) of the element remained undecayed. Calculate the half-life of the element.
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About This Question
This is Waec 2025 Physics Question 20. It is one of the objective questions from the 2025 Waec Physics examination.
The question covers radioactivity, half-life .
Difficulty level: 2 .
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