Nuclei Test - 6...

During a $$\beta$$  positive decay experiment it is observed that kinetic energy of $$\beta$$  positive particle is 50% of Q value of the reaction, then select the correct alternative 

When the number of nucleons in nuclei increase, the binding energy per nucleon

A beam of $$16 MeV$$ deutrons from a cyclotron falls on a copper block. The beam is equivalent to a current of 15$$\mu A$$. At what rate do the deutrons strike the block?

In an $$\alpha-decay$$, the kinetic energy of $$\alpha-particle$$ is $$48\ MeV$$ and Q value of the reaction is $$50\ MeV$$. The mass number of the mother nucleus is: - (Assume that daughter nucleus is in ground state)

The binding energy of an electron in the ground state of $$He\ $$atom is $$E_0=24.6 eV.$$ The  energy required to remove both the electrons from the atom is 

Find the binding energy of valence electron in the ground state of a $$Li$$ atom if the wavelength of the sharp series is known to be $$\lambda_{1}$$ $$= 813 nm$$ and the short wave cutoff wavelength $$\lambda_{2}$$, $$= 350 nm$$

The above is a plot of binding energy per nucleon $$E_{b},$$ against the nuclear mass M; A, B,C, D, E, correspond to different nuclei. Consider four reactions :
(i) $$A+B\rightarrow C+\varepsilon $$
(ii) $$C\rightarrow A+B+\varepsilon $$
(iii) $$D+E\rightarrow F+\varepsilon $$
(iv) $$F\rightarrow D+E+\varepsilon ,$$
where $$\varepsilon$$  is the energy released. In which reactions $$\varepsilon $$ positive?

Masses of two isobars $$_{29}^{64}\textrm{Cu}$$ and $$_{30}^{64}\textrm{Zn}$$ are $$63.9298 amu$$ and $$63.9292 amu$$ respectively. It can be concluded from these data that 

Statement 1: Binding energy of $$_8O^{15}$$ is less than $$_7N^{14}$$
Statement 2 : Nuclear force is independent of the charge on the nucleons. For isobars, the difference in binding energies is mainly due to the difference in proton-proton coulombic repulsion

The following deuterium reactions and corresponding reaction energies are found to occur
$$^{14}N(d, p)^{15}N, Q=8.53 MeV$$
$$^{15}N(d, \alpha)^{13}C, Q=7.58 MeV$$
$$^{13}C(d, \alpha)^{11}B, Q=5.16 MeV$$
The rotation $$^{14}N(d, p)^{15}N$$ represents the reaction $$^{14}N+d\rightarrow ^{15}N+p$$
$$_2^4He=4.0026 amu, _1^2He=2.014 amu, _1^1H=1.0078 amu, n=1.0087 amu (1 amu=931 MeV)$$
The Q values of the reaction $$^{11}B(\alpha, n)^{14}N$$ is