If the density of gold nucleus is X, then the density of silver nucleus will be:

1.  2X

2. $\frac{X}{3}$

3.  4X

4.  X

Subtopic:  Nucleus |
81%
From NCERT
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The volume (V) of a nucleus is related to its mass (M) as:

1.  $V$ $\propto$ $M$

2.  $V$ $\propto$ $\frac{1}{M}$

3.  $V$ $\propto$ ${M}^{3}$

4.  $V$ $\propto$ $\frac{1}{{M}^{3}}$

Subtopic:  Nucleus |
77%
From NCERT
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The stable nucleus that has a radius half of the radius of $F{e}^{56}$ is:

1. $L{i}^{7}$

2. $N{a}^{21}$

3. ${S}^{16}$

4. $C{a}^{40}$

Subtopic:  Nucleus |
66%
From NCERT
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The energy equivalent of one atomic mass unit is:

1. $1.6×{10}^{-19}$ $J$

2. $6.02×{10}^{23}$ $J$

3. 931 MeV

4. 9.31 MeV

Subtopic:  Mass-Energy Equivalent |
82%
From NCERT
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A nuclear reaction along with the masses of the particle taking part in it is as follows;

The energy Q liberated in the reaction is:

1. 1.234 MeV

2. 0.931 MeV

3. 0.465 MeV

4. 1.862 MeV

Subtopic:  Mass-Energy Equivalent |
75%
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If an electron and a positron annihilate, then the energy released is:

1. $3.2×{10}^{-13}$ $\mathrm{J}$

2. $1.6×{10}^{-13}$ $\mathrm{J}$

3. $4.8×{10}^{-13}$ $\mathrm{J}$

4. $6.4×{10}^{-13}$ $\mathrm{J}$

Subtopic:  Mass-Energy Equivalent |
63%
From NCERT
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The energy required in $$\mathrm{MeV} / \mathrm{c}^2$$ to separate $${ }_8^{16} \mathrm{O}$$ into its constituents is:
(Given mass defect for $${ }_8^{16} \mathrm{O}=0.13691 \mathrm{u}$$)
1. $$127.5$$
2. $$120.0$$
3. $$222.0$$
4. $$119.0$$

Subtopic:  Mass-Energy Equivalent |
68%
From NCERT
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The energy equivalent of $$0.5$$ g of a substance is:
1. $$4.5\times10^{13}$$ J
2. $$1.5\times10^{13}$$ J
3. $$0.5\times10^{13}$$ J
4. $$4.5\times10^{16}$$ J

Subtopic:  Mass-Energy Equivalent |
62%
From NCERT
NEET - 2020
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A nucleus represented by the symbol ${}_{\mathrm{Z}}{}^{\mathrm{A}}\mathrm{X}$ 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 |
90%
From NCERT
AIPMT - 2004
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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 |
85%
From NCERT
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