ATOMS%20AND%20NUCLEI - Topic Wise Multiple Choice Questions (MCQ)
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1 )
A radioactive substance decays to (1 / 16)th of its initial activity in 40 days. the half life of the radioactive substance expressed in day is
2 )
If the binding energy of electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the second excited state of Li++ is
3 )
The radio of minimum to maximum wave length in Balmer series is
4 )
Plutonium decays with half life time 24000 yrs. if Plutonium is stored after 72000 yrs, the fraction of it that remain
5 )
The nuclear 7N14 and 6C13 can be described as