MDCAT Physics MCQ #2559

A radioactive sample has a decay constant of 0.01 s^-1. What is its half-life?

MDCAT Physics MCQ #2559

  1. Question 1

    Q1. A radioactive sample has a decay constant of 0.01 s^-1. What is its half-life?

    • A) 69.3 s
    • B) 100 s
    • C) 50 s
    • D) 200 s

    Answer: 69.3 s

    Explanation: Half-life = ln(2)/λ = 0.693/0.01 = 69.3 s. Other options miscalculate or use wrong formula.