Nuclei Test - 5...

Atomic weight of a radioactive element is $$M$$ gram/mol. Radioactivity of $$m$$ gram of its mass is :

One mole of radium has an activity of 1/3.7 killo curie. Its decay constant will be 

A radioactive isotope has a half-life of $$2$$ years. How long will it approximately take the activity to reduce to $$3\%$$ of its initial value? 

The nuclear radius of a certain nucleus is $$7.2 \,fm$$ and it has a charge of $$1.28 \times 10^{-17}C$$. The number of neutrons inside the nucleus is:

A particular hydrogen like atom has its ground state Binding Energy=122.4eV. It is in ground state. Then

The kinetic energy of $$ \alpha $$ - particle emitted in the $$ \alpha $$ - decay of $$ { _{ 88 }{ Ra }^{ 226 } } $$ is [ given, mass number of Ra = 222 u ]

The active amount of radioactive substance left after one hour whose half life is $$20$$ minutes is?

In a nuclear fusion reaction, two nuclei, $$A$$ & $$B$$, fuse to produce a nucleus $$C$$, releasing an atom of energy $$\Delta E$$ in the process. If the mass defects on the three nuclie are $$\Delta M_{A}, \Delta M_{B}, \Delta M_{C}$$ respectively, then which of the following relations holds? Here $$c$$ is the speed of light:-    

Assuming the energy released per fission of $$U^{235}$$ is 200 me  V , the energy released in the fission of 1 kg of $$U^{235}$$ is energy

The binding energy per nucleon of $$_{26}F^{56}$$ nucleus is