Nuclear Force
NUCLEAR PHYSICS

147534 The ratio $(\mathrm{E} / \mathrm{W})$ of relative strength of electromagnetic force (E) to weak nuclear force (W) is

1 $10^{-1}$
2 $10^{11}$
3 $10^{20}$
4 $10^{-20}$
NUCLEAR PHYSICS

147536 The speed of ripples (v) on water surface depends on surface tension $(\sigma)$, density $(\rho)$ and wavelength $(\lambda)$ Then the square of speed $(v)$ is proportional to

1 $\frac{\sigma}{\rho \lambda}$
2 $\frac{\rho}{\sigma \lambda}$
3 $\frac{\lambda}{\sigma \rho}$
4 $\sqrt{\frac{\rho \lambda}{\sigma}}$
NUCLEAR PHYSICS

147539 Identify the correct statement among the following.

1 Resistivity of metals decreases with temperature because more electrons are available for conduction.
2 Resistivity of metals increases with temperature because number of electrons decreases.
3 Resistivity of metals increases with temperature because number of collisions between electrons increases.
4 Resistivity of metals decreases with temperature because superconductivity sets in.
NUCLEAR PHYSICS

147541 Match the following statements about fundamental forces.
| List-I | List-II |
| :---: | :--- |
| A. Gravitational force | I. Has infinite range \lt br> and can be both \lt br> attractive and repulsive |
| B. Strong nuclear force | II. Weakest force but \lt br> has infinite range |
| C. Weak nuclear force | III. Strongest among \lt br> the forces |
| D. Electromagnetic force | IV. Responsible for \lt br> radioactive decay |

1 A-iv, B-iii, C-ii, D-i
2 A-ii, B-i, C-iv, D-iii
3 A-iii, B-ii, C-i, D-iv
4 A-ii, B-iii, C-iv, D-i
NUCLEAR PHYSICS

147537 In thermonuclear reaction $3_{1}^{2} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{1}^{1} \mathrm{H}+{ }_{0}^{1} \mathrm{n}$ $+21.6 \mathrm{MeV}$, the percentage of mass converted during fusion in to energy is nearly:
#[Qdiff: Medium, QCat: Theory Based, examname: Mass of reactants $=6 \mathrm{AMU}$
, $1 \mathrm{AMU}=931 \mathrm{MeV}$
, $6 \mathrm{AMU}=6 \times 931=5586 \mathrm{MeV}$
, Percentage converted
, $=\frac{21.6}{5586} \times 100$
, $=0.38 \%$
, $=0.4 \%$
, 218. Two protons are kept at a separation of $10 \mathrm{~nm}$. Let $F_{n}$ and $F_{e}$ the nuclear force and the electromagnetic force between them :
, (a) $F_{e}=F_{n}$
, (b) $F_{\mathrm{e}}>>F_{n}$
, (c) $F_{\mathrm{e}} \lt \lt \mathrm{F}_{\mathrm{n}}$
, (d) $F_{e}$ and $F_{n}$ differ only slightly
, [Karnataka CET-2020,2019]#

1 $10 \%$
2 $0.4 \%$
3 $1 \%$
4 $0.01 \%$
NUCLEAR PHYSICS

147534 The ratio $(\mathrm{E} / \mathrm{W})$ of relative strength of electromagnetic force (E) to weak nuclear force (W) is

1 $10^{-1}$
2 $10^{11}$
3 $10^{20}$
4 $10^{-20}$
NUCLEAR PHYSICS

147536 The speed of ripples (v) on water surface depends on surface tension $(\sigma)$, density $(\rho)$ and wavelength $(\lambda)$ Then the square of speed $(v)$ is proportional to

1 $\frac{\sigma}{\rho \lambda}$
2 $\frac{\rho}{\sigma \lambda}$
3 $\frac{\lambda}{\sigma \rho}$
4 $\sqrt{\frac{\rho \lambda}{\sigma}}$
NUCLEAR PHYSICS

147539 Identify the correct statement among the following.

1 Resistivity of metals decreases with temperature because more electrons are available for conduction.
2 Resistivity of metals increases with temperature because number of electrons decreases.
3 Resistivity of metals increases with temperature because number of collisions between electrons increases.
4 Resistivity of metals decreases with temperature because superconductivity sets in.
NUCLEAR PHYSICS

147541 Match the following statements about fundamental forces.
| List-I | List-II |
| :---: | :--- |
| A. Gravitational force | I. Has infinite range \lt br> and can be both \lt br> attractive and repulsive |
| B. Strong nuclear force | II. Weakest force but \lt br> has infinite range |
| C. Weak nuclear force | III. Strongest among \lt br> the forces |
| D. Electromagnetic force | IV. Responsible for \lt br> radioactive decay |

1 A-iv, B-iii, C-ii, D-i
2 A-ii, B-i, C-iv, D-iii
3 A-iii, B-ii, C-i, D-iv
4 A-ii, B-iii, C-iv, D-i
NUCLEAR PHYSICS

147537 In thermonuclear reaction $3_{1}^{2} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{1}^{1} \mathrm{H}+{ }_{0}^{1} \mathrm{n}$ $+21.6 \mathrm{MeV}$, the percentage of mass converted during fusion in to energy is nearly:
#[Qdiff: Medium, QCat: Theory Based, examname: Mass of reactants $=6 \mathrm{AMU}$
, $1 \mathrm{AMU}=931 \mathrm{MeV}$
, $6 \mathrm{AMU}=6 \times 931=5586 \mathrm{MeV}$
, Percentage converted
, $=\frac{21.6}{5586} \times 100$
, $=0.38 \%$
, $=0.4 \%$
, 218. Two protons are kept at a separation of $10 \mathrm{~nm}$. Let $F_{n}$ and $F_{e}$ the nuclear force and the electromagnetic force between them :
, (a) $F_{e}=F_{n}$
, (b) $F_{\mathrm{e}}>>F_{n}$
, (c) $F_{\mathrm{e}} \lt \lt \mathrm{F}_{\mathrm{n}}$
, (d) $F_{e}$ and $F_{n}$ differ only slightly
, [Karnataka CET-2020,2019]#

1 $10 \%$
2 $0.4 \%$
3 $1 \%$
4 $0.01 \%$
NUCLEAR PHYSICS

147534 The ratio $(\mathrm{E} / \mathrm{W})$ of relative strength of electromagnetic force (E) to weak nuclear force (W) is

1 $10^{-1}$
2 $10^{11}$
3 $10^{20}$
4 $10^{-20}$
NUCLEAR PHYSICS

147536 The speed of ripples (v) on water surface depends on surface tension $(\sigma)$, density $(\rho)$ and wavelength $(\lambda)$ Then the square of speed $(v)$ is proportional to

1 $\frac{\sigma}{\rho \lambda}$
2 $\frac{\rho}{\sigma \lambda}$
3 $\frac{\lambda}{\sigma \rho}$
4 $\sqrt{\frac{\rho \lambda}{\sigma}}$
NUCLEAR PHYSICS

147539 Identify the correct statement among the following.

1 Resistivity of metals decreases with temperature because more electrons are available for conduction.
2 Resistivity of metals increases with temperature because number of electrons decreases.
3 Resistivity of metals increases with temperature because number of collisions between electrons increases.
4 Resistivity of metals decreases with temperature because superconductivity sets in.
NUCLEAR PHYSICS

147541 Match the following statements about fundamental forces.
| List-I | List-II |
| :---: | :--- |
| A. Gravitational force | I. Has infinite range \lt br> and can be both \lt br> attractive and repulsive |
| B. Strong nuclear force | II. Weakest force but \lt br> has infinite range |
| C. Weak nuclear force | III. Strongest among \lt br> the forces |
| D. Electromagnetic force | IV. Responsible for \lt br> radioactive decay |

1 A-iv, B-iii, C-ii, D-i
2 A-ii, B-i, C-iv, D-iii
3 A-iii, B-ii, C-i, D-iv
4 A-ii, B-iii, C-iv, D-i
NUCLEAR PHYSICS

147537 In thermonuclear reaction $3_{1}^{2} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{1}^{1} \mathrm{H}+{ }_{0}^{1} \mathrm{n}$ $+21.6 \mathrm{MeV}$, the percentage of mass converted during fusion in to energy is nearly:
#[Qdiff: Medium, QCat: Theory Based, examname: Mass of reactants $=6 \mathrm{AMU}$
, $1 \mathrm{AMU}=931 \mathrm{MeV}$
, $6 \mathrm{AMU}=6 \times 931=5586 \mathrm{MeV}$
, Percentage converted
, $=\frac{21.6}{5586} \times 100$
, $=0.38 \%$
, $=0.4 \%$
, 218. Two protons are kept at a separation of $10 \mathrm{~nm}$. Let $F_{n}$ and $F_{e}$ the nuclear force and the electromagnetic force between them :
, (a) $F_{e}=F_{n}$
, (b) $F_{\mathrm{e}}>>F_{n}$
, (c) $F_{\mathrm{e}} \lt \lt \mathrm{F}_{\mathrm{n}}$
, (d) $F_{e}$ and $F_{n}$ differ only slightly
, [Karnataka CET-2020,2019]#

1 $10 \%$
2 $0.4 \%$
3 $1 \%$
4 $0.01 \%$
NUCLEAR PHYSICS

147534 The ratio $(\mathrm{E} / \mathrm{W})$ of relative strength of electromagnetic force (E) to weak nuclear force (W) is

1 $10^{-1}$
2 $10^{11}$
3 $10^{20}$
4 $10^{-20}$
NUCLEAR PHYSICS

147536 The speed of ripples (v) on water surface depends on surface tension $(\sigma)$, density $(\rho)$ and wavelength $(\lambda)$ Then the square of speed $(v)$ is proportional to

1 $\frac{\sigma}{\rho \lambda}$
2 $\frac{\rho}{\sigma \lambda}$
3 $\frac{\lambda}{\sigma \rho}$
4 $\sqrt{\frac{\rho \lambda}{\sigma}}$
NUCLEAR PHYSICS

147539 Identify the correct statement among the following.

1 Resistivity of metals decreases with temperature because more electrons are available for conduction.
2 Resistivity of metals increases with temperature because number of electrons decreases.
3 Resistivity of metals increases with temperature because number of collisions between electrons increases.
4 Resistivity of metals decreases with temperature because superconductivity sets in.
NUCLEAR PHYSICS

147541 Match the following statements about fundamental forces.
| List-I | List-II |
| :---: | :--- |
| A. Gravitational force | I. Has infinite range \lt br> and can be both \lt br> attractive and repulsive |
| B. Strong nuclear force | II. Weakest force but \lt br> has infinite range |
| C. Weak nuclear force | III. Strongest among \lt br> the forces |
| D. Electromagnetic force | IV. Responsible for \lt br> radioactive decay |

1 A-iv, B-iii, C-ii, D-i
2 A-ii, B-i, C-iv, D-iii
3 A-iii, B-ii, C-i, D-iv
4 A-ii, B-iii, C-iv, D-i
NUCLEAR PHYSICS

147537 In thermonuclear reaction $3_{1}^{2} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{1}^{1} \mathrm{H}+{ }_{0}^{1} \mathrm{n}$ $+21.6 \mathrm{MeV}$, the percentage of mass converted during fusion in to energy is nearly:
#[Qdiff: Medium, QCat: Theory Based, examname: Mass of reactants $=6 \mathrm{AMU}$
, $1 \mathrm{AMU}=931 \mathrm{MeV}$
, $6 \mathrm{AMU}=6 \times 931=5586 \mathrm{MeV}$
, Percentage converted
, $=\frac{21.6}{5586} \times 100$
, $=0.38 \%$
, $=0.4 \%$
, 218. Two protons are kept at a separation of $10 \mathrm{~nm}$. Let $F_{n}$ and $F_{e}$ the nuclear force and the electromagnetic force between them :
, (a) $F_{e}=F_{n}$
, (b) $F_{\mathrm{e}}>>F_{n}$
, (c) $F_{\mathrm{e}} \lt \lt \mathrm{F}_{\mathrm{n}}$
, (d) $F_{e}$ and $F_{n}$ differ only slightly
, [Karnataka CET-2020,2019]#

1 $10 \%$
2 $0.4 \%$
3 $1 \%$
4 $0.01 \%$
NUCLEAR PHYSICS

147534 The ratio $(\mathrm{E} / \mathrm{W})$ of relative strength of electromagnetic force (E) to weak nuclear force (W) is

1 $10^{-1}$
2 $10^{11}$
3 $10^{20}$
4 $10^{-20}$
NUCLEAR PHYSICS

147536 The speed of ripples (v) on water surface depends on surface tension $(\sigma)$, density $(\rho)$ and wavelength $(\lambda)$ Then the square of speed $(v)$ is proportional to

1 $\frac{\sigma}{\rho \lambda}$
2 $\frac{\rho}{\sigma \lambda}$
3 $\frac{\lambda}{\sigma \rho}$
4 $\sqrt{\frac{\rho \lambda}{\sigma}}$
NUCLEAR PHYSICS

147539 Identify the correct statement among the following.

1 Resistivity of metals decreases with temperature because more electrons are available for conduction.
2 Resistivity of metals increases with temperature because number of electrons decreases.
3 Resistivity of metals increases with temperature because number of collisions between electrons increases.
4 Resistivity of metals decreases with temperature because superconductivity sets in.
NUCLEAR PHYSICS

147541 Match the following statements about fundamental forces.
| List-I | List-II |
| :---: | :--- |
| A. Gravitational force | I. Has infinite range \lt br> and can be both \lt br> attractive and repulsive |
| B. Strong nuclear force | II. Weakest force but \lt br> has infinite range |
| C. Weak nuclear force | III. Strongest among \lt br> the forces |
| D. Electromagnetic force | IV. Responsible for \lt br> radioactive decay |

1 A-iv, B-iii, C-ii, D-i
2 A-ii, B-i, C-iv, D-iii
3 A-iii, B-ii, C-i, D-iv
4 A-ii, B-iii, C-iv, D-i
NUCLEAR PHYSICS

147537 In thermonuclear reaction $3_{1}^{2} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{1}^{1} \mathrm{H}+{ }_{0}^{1} \mathrm{n}$ $+21.6 \mathrm{MeV}$, the percentage of mass converted during fusion in to energy is nearly:
#[Qdiff: Medium, QCat: Theory Based, examname: Mass of reactants $=6 \mathrm{AMU}$
, $1 \mathrm{AMU}=931 \mathrm{MeV}$
, $6 \mathrm{AMU}=6 \times 931=5586 \mathrm{MeV}$
, Percentage converted
, $=\frac{21.6}{5586} \times 100$
, $=0.38 \%$
, $=0.4 \%$
, 218. Two protons are kept at a separation of $10 \mathrm{~nm}$. Let $F_{n}$ and $F_{e}$ the nuclear force and the electromagnetic force between them :
, (a) $F_{e}=F_{n}$
, (b) $F_{\mathrm{e}}>>F_{n}$
, (c) $F_{\mathrm{e}} \lt \lt \mathrm{F}_{\mathrm{n}}$
, (d) $F_{e}$ and $F_{n}$ differ only slightly
, [Karnataka CET-2020,2019]#

1 $10 \%$
2 $0.4 \%$
3 $1 \%$
4 $0.01 \%$