In a radioactive material

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

Problem

In a radioactive material, fraction of active material remaining after time

t

9/16

. The fraction that was remaining after

t/2

is : (1)

\frac{4}{5}

(2)

\frac{3}{5}

(3)

\frac{3}{4}

(4)

\frac{7}{8}