The half life of a radioactive substance is 24 hours. Time required for 12.5% of the original radioactive substance W remain is

Define half life of a radioactive substance.

Define half-life of a radioactive substance.

The half-life of a radioactive nucleide 'X is 24 hours, the time required for 12.5% of the original X to remain is :

The half-life of a radioactive substance is 10 days. This means that

A human body required 0.01M activity of a radioactive substance after 24 hours. Half life of the radioactive substance is 6 hours. The injection of maximum activity of the radioactive substance that can be injected is :