If in 3160 years, a radioactive substance becomes one-fourth of the original amount, find it’s the half-life period.

Radioactive substance becomes 1/16th of original in 80 minutes. find half life

In 8000 y, a radioactive substance reduces a 1/32 th part of its initial amount. Determine its half-life.

After 2 hours, a radioactive substance becomes ((1)/(16))^(th) of original amount. Then the half life (in min) is

A radioactive material reduces to 1/8 th of its initial amount in 18000 y. Find its half-life period.

After 20 min, the amount of certai radioactive substance disintegrate was 15/16 original amount. What is the half-life ofg the radioactive substance?