The half life of a radioactive substance is 30 days. What is the time taken to disintegrate to `3//4^(th)` of its original mass ?

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

The half - life period of a radioactive substance is 20 days. What is the time taken for 7//8^(th) of its original mass to disintegrate ?

The half-life period of a radioactive substance is 30 days. What is the time taken for 3/4 the of its original masss to disintegrate ?

The helf life period o a radioactive substace is 30 days.What is the time taken for 3//4th of its original mass to disintegrate?

The half-life period of a radioactive substance is 20 days. What is the time taken for 7//8th of its original mass to disintergrate?

Half life of radioactive substance is 3.20 h. What is the time taken for 75% substance to be used?

Half life of radioactive substance is 3.20 h. What is the time taken for 75% substance to be used?

The half - life of a radioactive substance is 50 days. The substance will disintegrate completely in

The half - life of a radioactive substance is 50 days. The substance will disintegrate completely in