Medium· Radioactivity (Half-Life and Mean-Life)· +4 / −1
The half-life of a radioactive nuclide is hours. The fraction of original activity that will remain after hours would be :
Nuclei: NEET 2021
Related questions
The half life of a radioactive substance is 20 minutes. In how much time, the activity of substance drops to (116)^th of its initial value?
NEET 2023 · Easy
The energy required to break one bond in DNA is 10^-20 J. This value in eV is nearly :
NEET 2020 · Easy
The energy equivalent of 0.5 g of a substance is :
NEET 2020 · Easy
When a uranium isotope ^235_92U is bombarded with a neutron, it generates ^89_36Kr , three neutrons and :
NEET 2020 · Easy
In the given nuclear reaction, the element X is: ^22_11Na X + e^++
NEET 2022 · Medium
A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of the two daughter nuclei,…
NEET 2022 · Easy