Question

The half-life of a radioactive material is 77 days.
The decay constant l is numerically equal to (in days⁻¹)
(a) 27 × 10⁻³ (b) 9 × 10⁻³
(c) 3 × 10⁻³ (d) 1 × 10⁻³

Answer 1

Answer:

b. is the correct answer

Explanation:

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