Nuclei Test - 5...

Binding energy of deuterium is $$2.23\ MeV$$, then its mass defect in a.m.u. is

A heavy nucleus $$X$$ of mass number $$240$$ and binding energy per nucleon $$7.6MeV$$ is split into two fragments $$Y$$ and $$Z$$ of mass numbers $$110$$ and $$130$$ the binding energy of nucleons in $$Y$$ is $$8.5MeV$$ per nucleon$$.$$ Calculate the energy $$Q$$ released per fission in $$MeV.$$   

A nuclear reactor delivers power of 10W, find fuel consumed by the reactor per hour if its efficiency is $$20\%$$, Given $$c=3 \times 10^8 m/s$$

In $$\overset { 14 }{ \underset { 7 }{ N }  } $$ if mass attributed to electron were doubled & the mass attributed to protons were halved, the atomic mass would become approximately:-

48 g of Mg contain the same number of atoms as 160 g another mono-atomic element.The atomic mass the element is:

Atomic mass of $$_{ 6 }^{ 13 }{ C }$$ is $$13.00335$$ amu and its mass number is $$13.0$$. If amu $$=931$$MeV, binding energy of the neutrons present in the nucleus is

Among $$\alpha$$ -decay and $$\beta$$ -decay which cause a change of element?

Nucleus A is converted into C through the following reactions,
A$$\rightarrow $$B+$$\alpha $$
B$$\rightarrow$$C+2$$\beta $$
then,

The nucleus of mass  $$M +  \Delta m$$  is at rest and decays into two daughter nuclei of equal mass  $$\dfrac {  M  } { 2 }$$  each. Speed of light is  $$ c.$$ This binding energy per nucleon for the parent nucleus is  $$E _ { 1 }$$  and that for the daughter nuclei is  $$E _ { 2 }.$$  Then :

A sample containing same number of two nuclei A and B start decaying. The decay constant of A and B are $$10 \lambda$$ and $$\lambda$$. The time after which $$\dfrac{N_A}{N_B}$$ becomes $$\dfrac{1}{e}$$ is