In the following reaction the value of ‘X’ is  
N714+He24X+H11

(1) N817             

(2) O817

(3) O716             

(4) N716

Subtopic:  Types of Decay |
 80%
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The binding energy of nucleus is a measure of its

(1) Charge             

(2) Mass

(3) Momentum       

(4) Stability

Subtopic:  Nuclear Binding Energy |
 71%
From NCERT
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Heavy water is

(1) Water at 4°C

(2) Compound of deuterium and oxygen

(3) Compound of heavy oxygen and heavy hydrogen

(4) Water in which soap does not lather

Subtopic:  Nuclear Energy |
 81%
From NCERT
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If M is the atomic mass and A is the mass number, packing fraction is given by:
(1) AM-A           

(2) A-MA
(3)MM-A            

(4) M-AA

Subtopic:  Mass-Energy Equivalent |
 50%
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Mp denotes the mass of a proton and Mn that of a neutron. A given nucleus of binding energy B contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by:    (c is the velocity of light) 

(1) M(NZ)=NMn+ZMp-Bc2

(2) M(NZ)=NMn+ZMp+Bc2

(3) M(NZ)=NMn+ZMp-B/c2

(4) M(NZ)=NMn+ZMp+B/c2

Subtopic:  Nuclear Binding Energy |
 75%
From NCERT
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Complete the reaction
n+U92235Ba56144+...+3n

1. Kr3689      

2. Kr3690

3. Kr3691       

4. Kr3692

Subtopic:  Nuclear Energy |
 73%
From NCERT
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1 atomic mass unit is equal to 
(1) 125 (mass of F2 molecules)
(2) 114 (mass of N2 molecules)
(3) 112 (mass of one C-atom)
(4) 116 (mass of O2 molecules)

Subtopic:  Mass-Energy Equivalent |
 93%
From NCERT
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The nucleus U92234 splits exactly in half in a fission reaction in which two neutrons are released. The resultant nuclei are

(1) Pd46116        

(2) Rh45117

(3) Rh45116       

(4) Pd46117

Subtopic:  Radioactivity (OLD NCERT) |
 65%
From NCERT
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A nucleus is bombarded with a high speed neutron so that resulting nucleus is a radioactive one. This phenomenon is called 

(1) Artificial radioactivity         

(2) Fusion

(3) Fission                               

(4) Radioactivity

Subtopic:  Radioactivity (OLD NCERT) |
 52%
From NCERT
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Which of the following cannot cause fission in a heavy nucleus 

(1) α-particle         

(2) Proton

(3) Deutron             

(4) Laser rays

Subtopic:  Radioactivity (OLD NCERT) |
 71%
From NCERT
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