Physics · Nuclear Physics
Read the Assertion (A) and Reason (R) carefully regarding radioactivity and choose the correct option. Assertion (A): The radioactivity of 108 undecayed radioactive nuclei with a half-life of 50 days is equal to that of 1.2 × 108 undecayed nuclei of another material with a half-life of 60 days. Reason (R): Radioactivity is inversely proportional to the half-life of the material.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(A) is true but (R) is false.✓
- 2(A) is false but (R) is true.
- 3Both (A) and (R) are true but (R) is not the correct explanation of (A).
- 4Both (A) and (R) are true and (R) is the correct explanation of (A).
Correct answer
(A) is true but (R) is false.
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