After 300 days, the activity of a radioactive sample is 5000 dps (disintegration per second). The activity becomes 2500 dps after another 150 days. The initial activity of the sample (in dps) is

Options

(a) 20000
(b) 10000
(c) 7000
(d) 25000

Correct Answer:

20000

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.