363801
Two nucleons are at a separation of \(1\,fm\). The net force between them is \({F_1},\) if both are neutrons, \({F_2}\) if both are protons and \({F_3}\) if one is a proton and the other is a neutron.
1 \({F_2} > {F_1} > {F_3}\)
2 \({F_1} > {F_2} > {F_3}\)
3 \({F_1} = {F_2} > {F_3}\)
4 \({F_1} = {F_3} > {F_2}\)
Explanation:
Nuclear force of attraction between any two nucleons \(\left( {n - n,p - p,p - n} \right)\) is same. The difference comes up only due to electrostatic force of repulsion between two protons. \(\therefore \,\,\,\,\,{F_1} = {F_3} \ne {F_2}\) Coulombic repulsion takes place between \(p - p\) \(\therefore \,\,\,{F_1} = {F_3} > {F_2}\)
PHXII13:NUCLEI
363802
Assertion : The nuclear force becomes weak if the nucleus contains too many protons compared to neutrons. Reason : The electrostatic forces weaken the nuclear force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\({F_{electro{\rm{ }}}} \simeq \left( {{F_{nuclear{\rm{ }}}}{\rm{/}}100} \right)\) Nuclear forces are strongest when protons equal neutrons. Imbalance weakens nuclear force. Weakening isn't due to electrostatic force. So correct option is (3).
363801
Two nucleons are at a separation of \(1\,fm\). The net force between them is \({F_1},\) if both are neutrons, \({F_2}\) if both are protons and \({F_3}\) if one is a proton and the other is a neutron.
1 \({F_2} > {F_1} > {F_3}\)
2 \({F_1} > {F_2} > {F_3}\)
3 \({F_1} = {F_2} > {F_3}\)
4 \({F_1} = {F_3} > {F_2}\)
Explanation:
Nuclear force of attraction between any two nucleons \(\left( {n - n,p - p,p - n} \right)\) is same. The difference comes up only due to electrostatic force of repulsion between two protons. \(\therefore \,\,\,\,\,{F_1} = {F_3} \ne {F_2}\) Coulombic repulsion takes place between \(p - p\) \(\therefore \,\,\,{F_1} = {F_3} > {F_2}\)
PHXII13:NUCLEI
363802
Assertion : The nuclear force becomes weak if the nucleus contains too many protons compared to neutrons. Reason : The electrostatic forces weaken the nuclear force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\({F_{electro{\rm{ }}}} \simeq \left( {{F_{nuclear{\rm{ }}}}{\rm{/}}100} \right)\) Nuclear forces are strongest when protons equal neutrons. Imbalance weakens nuclear force. Weakening isn't due to electrostatic force. So correct option is (3).
363801
Two nucleons are at a separation of \(1\,fm\). The net force between them is \({F_1},\) if both are neutrons, \({F_2}\) if both are protons and \({F_3}\) if one is a proton and the other is a neutron.
1 \({F_2} > {F_1} > {F_3}\)
2 \({F_1} > {F_2} > {F_3}\)
3 \({F_1} = {F_2} > {F_3}\)
4 \({F_1} = {F_3} > {F_2}\)
Explanation:
Nuclear force of attraction between any two nucleons \(\left( {n - n,p - p,p - n} \right)\) is same. The difference comes up only due to electrostatic force of repulsion between two protons. \(\therefore \,\,\,\,\,{F_1} = {F_3} \ne {F_2}\) Coulombic repulsion takes place between \(p - p\) \(\therefore \,\,\,{F_1} = {F_3} > {F_2}\)
PHXII13:NUCLEI
363802
Assertion : The nuclear force becomes weak if the nucleus contains too many protons compared to neutrons. Reason : The electrostatic forces weaken the nuclear force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\({F_{electro{\rm{ }}}} \simeq \left( {{F_{nuclear{\rm{ }}}}{\rm{/}}100} \right)\) Nuclear forces are strongest when protons equal neutrons. Imbalance weakens nuclear force. Weakening isn't due to electrostatic force. So correct option is (3).
363801
Two nucleons are at a separation of \(1\,fm\). The net force between them is \({F_1},\) if both are neutrons, \({F_2}\) if both are protons and \({F_3}\) if one is a proton and the other is a neutron.
1 \({F_2} > {F_1} > {F_3}\)
2 \({F_1} > {F_2} > {F_3}\)
3 \({F_1} = {F_2} > {F_3}\)
4 \({F_1} = {F_3} > {F_2}\)
Explanation:
Nuclear force of attraction between any two nucleons \(\left( {n - n,p - p,p - n} \right)\) is same. The difference comes up only due to electrostatic force of repulsion between two protons. \(\therefore \,\,\,\,\,{F_1} = {F_3} \ne {F_2}\) Coulombic repulsion takes place between \(p - p\) \(\therefore \,\,\,{F_1} = {F_3} > {F_2}\)
PHXII13:NUCLEI
363802
Assertion : The nuclear force becomes weak if the nucleus contains too many protons compared to neutrons. Reason : The electrostatic forces weaken the nuclear force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\({F_{electro{\rm{ }}}} \simeq \left( {{F_{nuclear{\rm{ }}}}{\rm{/}}100} \right)\) Nuclear forces are strongest when protons equal neutrons. Imbalance weakens nuclear force. Weakening isn't due to electrostatic force. So correct option is (3).
