After 280 days, the activity of a radioactive sample is 6000dps. The activity reduces to 3000dps after another 140days. What Is The initial activity of the sample in dps?

As given in the question:

The activity of the radioactive sample reduces to half in 140 days.

The half-life of the sample is 140 days.

280 days is its two half-lives.

So before two half-lives, its activity was

\(2^{6} * 6000\) = 2000 dps

Therefore, The initial activity of the sample in dps is 2000 dps

Explore more such questions and answers at BYJU’S.

Was this answer helpful?


0 (0)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *




Free Class