The half-life of a radioactive substance A is 4 days

PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear physics

Problem

The half-life of a radioactive substance A is 4 days. The probability that a nucleus will decay in two half-lives is (1)

\frac{1}{4}

(2)

\frac{3}{4}

(3)

\frac{1}{2}

(4)

1