2o g of radioactive substance decays to 10g in 2days. How much substance will remain undecayed after 10 days?

Half life of a radioactive sample is 10days. What fraction of this sample will remain undecayed after 100days?

A radioactive substance takes 20 min to decay 25%. How much time will be taken to decay 75% :

In a sample of a radioactive substance, what fraction of the initial nuceli will remain undecayed after a time t=T//2 , where T=half -life of radioactive substance?

Half life of a radioactive sample is 4 days. After 16 days how much quantity of matter remain undecayed :

20% of a radioactive substances decay in 10 days . Calculate the amount of the original material left after 30 days.

A radioactive sample remains undecayed 9/16 after time t.How much sample remains undecayed after time t/2

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

Ekta earns Rs 1500 in 10 days. How much will she earn in 30 days?

The half life period of a radioactive substance is 140 days. After how much time, 15 g will decay from a 16 g sample of the substance?

The half life period for the decomposition of a substance is 2.5 hours. If the initial weight of the substance is 160 g, how much of the substance will be left after 10 hours?