Atoms and Nuclei · Physics · AIIMS
Start PracticeMCQ (Single Correct Answer)
AIIMS 2019
15 eV is given to electron in 4th orbit then
find its final energy when it comes out of
H-atom.
AIIMS 2019
If half life of an element is $$69.3 \mathrm{~h}$$, then how much of its percent will decay in 10th to 11th $$\mathrm{h}$$. Initial activity $$=50 ~\m...
AIIMS 2019
Assertion : Heavy water is used to slow
neutron in nuclear reactor.
Reason : It does not react with slow neutron
and mass of deuterium is comparable t...
AIIMS 2019
Assertion : For an element generally $$N \geq Z$$ ( $$N=$$ number of neutrons, $$Z=$$ atomic number)
Reason : Neutrons always experience attractive nu...