Home
Class 12
PHYSICS
The half-life of a radioactive nucleus i...

The half-life of a radioactive nucleus is 20 hours. What fraction of original activity will remain after 40 hours?

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Similar Questions

Explore conceptually related problems

If the half-life of a radioactive sample is 10 hours its mean life is

If the half-life of a radioactive sample is 10 hours its mean life is ?

The half-life of a certain radioactive isotope is 32 h .What fraction of a sample would ramain after 16h ?

The half-life of redioactive element is 600 yr. The fraction of sample that would remain after 3000 yr is

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

The half-life of a radioactive isotope is 2.5 hour. The mass of it that remains undecayed after 10 hour is (If the initial mass of the isotope was 16g).

Mean life of a radioactive sample is t_0 . What fraction of sample remains left after time t_0ln_2 ?

The half-life of a first order reaction is 30 min. What fraction of the reactant remains after 70 min?