Nuclei Test - 4...

The following nuclear reaction is an example of $$ \frac { 12 }{ 6 } C+\frac { 4 }{ 2 } H\rightarrow \frac { 16 }{ 8 } O+energy$$:

$$X(n, \alpha)+_0^1n \rightarrow _{3}^{7}Li + _2^4He$$, then $$X$$ will be :

If $$m_{0}$$ is the mass of isotope $$\frac{16}{8}O, m_{p}\  and\  m_{m}$$ are the masses of a proton and neutron respectively, the nuclear binding energy of the isotope is:

Calculate the neutron separation energy from the following data.
$$m(^{40}_{20}Ca) = 39.962591 \ u;$$
 $$m (^{41}_{20}Ca) = 40.962278 \ u;$$
 $$m_n = 1.00865;$$
$$ 1u = 931.5 MeV/C^2$$

Which of the following graph shows variation of decay rate of a radioactive sample with number of nuclei left in the sample :-

Binding energy per nucleon versus mass number curve for nuclei is shown  in the figure. A, B, C and D are  four muclei indicated on the curve. The process that would release energy is 

What is the binding energy of an electron in the first orbit of $${ Li }^{ 2+ }$$ is

The binding energies of two nuclei $$P^{n}$$ and $$Q^{2n}$$ are $$x$$ and $$y$$ joules. If $$2x > y$$ then the energy released in the reaction:
$$P^{n}+P^{n} \rightarrow Q^{2n}$$ will be

If $$N_t=N_0e^{-\lambda t}$$ then number of disintegrated atoms between $$t_1$$ to $$t_2$$ ($$t_2> t_1$$) will be:

The average binding energy per nucleon of a nucleus is of the order of