Atoms and Nuclei (NEET Physics): Questions 57  62 of 69
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Question number: 57
» Atoms and Nuclei » Composition and Size of Nucleus
Question
How many electrons, protons, and neutrons are there in a nucleus of atomic number 11 and mass number 24?
Choices
Choice (4)  Response  

a.  12, 11, 13 

b.  11, 11, 13 

c.  11, 12, 13 

d.  11, 13, 12 

Question number: 58
» Atoms and Nuclei » MassEnergy Relation
Question
If mass equivalent to one mass of proton is completely converted into energy then determine the energy produced?
Choices
Choice (4)  Response  

a.  431.49 MeV 

b.  931.49 MeV 

c.  911.49 MeV 

d.  731.49 MeV 

Question number: 59
» Atoms and Nuclei » Binding Energy Per Nucleon
Question
If the mass of _{3} Li ^{7} is 7.0163 a. m. u. , the binding energy per nucleon for _{3} Li ^{7} will be,
Choices
Choice (4)  Response  

a.  39.25 MeV 

b.  5.6 MeV 

c.  1 MeV 

d.  zero 

Question number: 60
» Atoms and Nuclei » Nuclear Fission and Fusion
Question
Fission of nuclei is possible because the binding energy per nucleon in them,
Choices
Choice (4)  Response  

a.  Increases with mass number at low mass numbers 

b.  Decreases with mass number at high mass number 

c.  Decreases with mass number at low mass numbers 

d.  Increases with mass number at high mass number 

Question number: 61
» Atoms and Nuclei » Mass Defect
Question
Consider the decay of radium (Ra ^{226}) atom into an alpha particle and radon (Rn ^{222}). Then, what is the mass defect of the reaction
Mass of radium 226 atom = 226.0256 u
Mass of radon  222 atom = 222.0715 u
Mass of helium  4 atom = 4.0026 u
Choices
Choice (4)  Response  

a.  0.0053 u 

b.  0.083 u 

c.  0.0083 u 

d.  All of the above 

Question number: 62
» Atoms and Nuclei » Composition and Size of Nucleus
Question
Nuclear radius of _{8} O ^{16} is 3 × 10 ^{15} m. Find the density of nuclear matter.
Choices
Choice (4)  Response  

a.  1.66 × 10 ^{17} kgm ^{3} 

b.  5.7 × 10 ^{17} kgm ^{3} 

c.  7.5 × 10 ^{17 } kgm ^{3} 

d.  2.3 × 10 ^{17 } kgm ^{3} 
