Mini Q Bank - Nuclei Nuclei Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

If the density of the gold nucleus is

X,

$X,$ then the density of the silver nucleus will be:
1.

2 X

$2X$
2.

\frac{X}{3}

$\frac{X}{3}$
3.

4 X

$4X$
4.

X

$X$

Subtopic: Nucleus |

84%

From NCERT

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Q2:

The volume

(V)

$(V)$ of a nucleus is related to its mass

(M)

$(M)$ as:
1.

V \propto M

$V\propto M$
2.

V \propto \frac{1}{M}

$V\propto \frac{1}{M}$
3.

V \propto M^{3}

$V\propto M^3$
4.

V \propto \frac{1}{M^{3}}

$V\propto \frac{1}{M^3}$

Subtopic: Nucleus |

79%

From NCERT

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Q3:

The stable nucleus that has a radius half of the radius of

{F e}^{56}

$\mathrm{Fe}^{56}$ is:
1.

{L i}^{7}

$\mathrm{Li}^7$
2.

{N a}^{21}

$\mathrm{Na}^{21}$
3.

S^{16}

$\mathrm{S}^{16}$
4.

{C a}^{40}

$\mathrm{Ca}^{40}$

Subtopic: Nucleus |

68%

From NCERT

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Q4:

The energy equivalent of one atomic mass unit is:
1.

1.6 \times 10^{- 19} J

$1.6\times 10^{-19}~\text{J}$
2.

6.02 \times 10^{23} J

$6.02\times 10^{23}~\text{J}$
3.

931 MeV

$931~\text{MeV}$
4.

9.31 MeV

$9.31~\text{MeV}$

Subtopic: Mass-Energy Equivalent |

83%

From NCERT

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Q5:

A nuclear reaction along with the masses of the particle taking part in it is as follows;

A + B \to C + D + Q MeV 1.002 u 1.004 u 1.001 u 1.003 u

$~~~~A ~~~~+~~~~~ B~~~~~ \rightarrow~~~~C ~~+~~~~ D~~~+~ ~Q~ ~\text{MeV}\\ \small{1.002~\text u~~~~~~~~ 1.004~\text u ~~~~~~~~~~~1.001~\text u~~~~~~1.003~\text u}$
The energy

Q

$Q$ liberated in the reaction is:
1.

1.234 MeV

$1.234~\text{MeV}$
2.

0.931 MeV

$0.931~\text{MeV}$
3.

0.465 MeV

$0.465~\text{MeV}$
4.

1.862 MeV

$1.862~\text{MeV}$

Subtopic: Mass-Energy Equivalent |

77%

From NCERT

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Q6:

If an electron and a positron annihilate, then the energy released is:
1.

3.2 \times 10^{- 13} J

$3.2\times 10^{-13}~\text{J}$
2.

1.6 \times 10^{- 13} J

$1.6\times 10^{-13}~\text{J}$
3.

4.8 \times 10^{- 13} J

$4.8\times 10^{-13}~\text{J}$
4.

6.4 \times 10^{- 13} J

$6.4\times 10^{-13}~\text{J}$

Subtopic: Mass-Energy Equivalent |

64%

From NCERT

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Q7:

The energy required in $\text{MeV/c}^2$ to separate ${ }_8^{16} \mathrm{O}$ into its constituents is:
(Given: mass defect for ${ }_8^{16} \mathrm{O}=0.13691~ \text{amu}$ )

1.	$127.5$	2.	$120.0$
3.	$222.0$	4.	$119.0$

Subtopic: Mass-Energy Equivalent |

71%

From NCERT

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Q8:

The energy equivalent of $0.5~\text g$ of a substance is:
1. $4.5\times10^{13}~\text J$
2. $1.5\times10^{13}~\text J$
3. $0.5\times10^{13}~\text J$
4. $4.5\times10^{16}~\text J$

Subtopic: Mass-Energy Equivalent |

64%

From NCERT

NEET - 2020

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Q9:

A nucleus represented by the symbol

_{Z}^{A} X

${}_{Z}^{A}\mathrm{X}$ has:

1.	$Z$ protons and $A-Z$ neutrons
2.	$Z$ protons and $A$ neutrons
3.	$A$ protons and $Z-A$ neutrons
4.	$Z$ neutrons and $A-Z$ protons

Subtopic: Nuclear Binding Energy |

91%

From NCERT

AIPMT - 2004

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Q10:

Which of the following pairs of nuclei are isotones?

1.	${}_{34}^{74}\mathrm{Se}, {}_{31}^{71}\mathrm{Ca}$	2.	${}_{42}^{92}\mathrm{Mo}, {}_{40}^{92}\mathrm{Zr}$
3.	${}_{38}^{81}\mathrm{Sr}, {}_{38}^{86}\mathrm{Sr}$	4.	${}_{20}^{40}\mathrm{Ca}, {}_{16}^{32}\mathrm{S}$

Subtopic: Nuclear Binding Energy |

86%

From NCERT

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