Initial active mass of a radioactive sample is 76 gm . The active mass at the end of two mean lives is approximately.

The activity of a radioactive sample

An open container has net 10 gm mass of a radioactive material. The net mass in the container after two mean lives is approximately.

If the mass of a radioactive sample is doubled, the activity of the sample

The activity of a radioactive sample is independent of

What do you mean by 'activity' of a radioactive sample ?

A 10 g sample of radioactive sample is present at t= 0. The approximate mass of this element in the sample after two mean life is :

Calculate the activity of 1 mg of a radioactive sample whose mass no. is 90 and half life is 28 years.

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

In which properites , the activity of a radioactive sample depends ?

If the mass of a radioactive sample is doubled, the activity of the sample and the disintegration constant of the sample are respectively