The activity of a radioactive substance is readuced by 80% in 100 days. Its half life is

Ceratain radioactive substance reduces to 25% of its value is 16 days . Its half-life is

Ceratain radioactive substance reduces to 25% of its value is 16 days . Its half-life is

The activity of a radioactive isotope falls to 12.5% in 90 days. Compute the half life and decay constatn of isotope.

Define half life of a radioactive substance.

Define half-life of a radioactive substance.

The activity of a radioactive substance becomes from 8000 Bq to 1000 Bq in 12 days . What is the half-life of the radioactive substance ?

The activity of a radioactive isotope falls to 12.5% in 90 days. Calculate the half life and decay constant.

The activity of a radioactive isotope falls to 12.5% in 90 days. Calculate the half life and decay constant.

The activity of a radioactive isotope falls to 12.5% in 90 days. Calculate the half life and decay constant.

The activity of a radioactive isotope falls to 12.5% in 90 days. Calculate the half life and decay constant.