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

MCQ▾

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 » Mass-Energy Relation

MCQ▾

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

MCQ▾

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

MCQ▾

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

MCQ▾

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

MCQ▾

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

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