The order of the size of nucleus and Bohr radius of an atom respectively are 

(1) ${10}^{-14}<mspace\; width="1em"></mspace>\mathrm{m},<mspace\; width="1em"></mspace>{10}^{-10}<mspace\; width="1em"></mspace>\mathrm{m}$              

(2) ${10}^{-10}<mspace\; width="1em"></mspace>\mathrm{m},<mspace\; width="1em"></mspace>{10}^{-8<mspace\; width="1em"></mspace>}\mathrm{m}$ 

(3) ${10}^{-20}<mspace\; width="1em"></mspace>\mathrm{m},<mspace\; width="1em"></mspace>{10}^{-16<mspace\; width="1em"></mspace>}\mathrm{m}$               

(4) ${10}^{-8}<mspace\; width="1em"></mspace>\mathrm{m},<mspace\; width="1em"></mspace>{10}^{-6<mspace\; width="1em"></mspace>}\mathrm{m}$

Which of the following particles are constituents of the nucleus 

(1) Protons and electrons           

(2) Protons and neutrons

(3) Neutrons and electrons         

(4) Neutrons and positrons

The mass number of a nucleus is

(1) Always less than its atomic number

(2) Always more than its atomic number

(3) Always equal to its atomic number

(4) Sometimes more than and sometimes equal to its atomic number

Nuclear binding energy is equivalent to 

(1) Mass of proton       

(2) Mass of neutron

(3) Mass of nucleus     

(4) Mass defect of nucleus

If the binding energy of the deutrium is 2.23 MeV.
The mass defect given in a.m.u. is 

(1) – 0.0024           

(2) – 0.0012

(3) 0.0012               

(4) 0.0024

Which of the following has the mass closest in value to that of the positron 

(1) Proton         

(2) Electron

(3) Photon         

(4) Neutrino

(1 amu = 931 MeV)

Size of nucleus is of the order of

(1) ${10}^{-10}<mspace\; width="1em"></mspace>\mathrm{m}$            

(2) ${10}^{-15<mspace\; width="1em"></mspace>}\mathrm{m}$

(3) ${10}^{-12}<mspace\; width="1em"></mspace>\mathrm{m}$             

(4) ${10}^{-19}<mspace\; width="1em"></mspace>\mathrm{m}$

For effective nuclear forces, the distance should be

(1) ${10}^{-10}<mspace\; width="1em"></mspace>\mathrm{m}$         

(2) ${10}^{-13}<mspace\; width="1em"></mspace>\mathrm{m}$

(3) ${10}^{-15}<mspace\; width="1em"></mspace>\mathrm{m}$         

(4) ${10}^{-20}<mspace\; width="1em"></mspace>\mathrm{m}$

The masses of neutron and proton are 1.0087 a.m.u. and 1.0073 a.m.u. respectively. If the neutrons and protons combine to form a helium nucleus (alpha particle) of mass 4.0015 a.m.u. The binding energy of the helium nucleus will be (1 a.m.u.= 931 MeV) :

(1) 28.4 MeV               

(2) 20.8 MeV

(3) 27.3 MeV               

(4) 14.2 MeV

Atomic power station at Tarapore has a generating capacity of 200 MW. The energy generated in a day by this station is

(1) 200 MW               

(2) 200 J

(3) $4800\times {10}^6<mspace\; width="1em"></mspace>\mathrm{J}$          

(4) $1728\times {10}^{10}$ J