Physics · Nuclear Physics

If the half-life of a radioactive substance is 10 days, what does it signify?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1One-half of the substance will decay in 5 days
2Three-fourths of the substance will decay in 20 days✓
3The entire substance will decay completely in 20 days
4One-fourth of the substance will decay in 20 days

Correct answer

Three-fourths of the substance will decay in 20 days

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