363688
Assertion : Nuclei having mass number about 60 are most stable. Reason : When two or more light nuclei are combined into a heavier nucleus, then the binding energy per nucleon will increase.
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:
The \((B.E{\rm{/}}A)\) value for \(Fe\,{\rm{ - }}\,56\) is \(8.8\,MeV\) and for \(Ni\,{\rm{ - }}\,62\) is \(8.7{\mkern 1mu} MeV{\rm{/nucleon}}\). Nuclei with a mass number, \(A\), close to 60 exhibit the maximum binding energy per nucleon, approximately \(8.7\,MeV\). Consequently, these nuclei are considered to be the most stable. Reason is fact about fusion. So correct option is (2).
PHXII13:NUCLEI
363689
In a nuclear reaction some mass converts into energy. In this reaction total \(B\).\(E\) of reactants when compared with that of products is
1 always greater
2 always less
3 either greater or less
4 always equal
Explanation:
Conceptual Question
PHXII13:NUCLEI
363690
Let \({E_1}\) and \({E_2}\) be the binding energies of two nuclei \(\,A\) and \(B\). It is observed that two nuclei of \(\,A\) combine together to form a \(B\) nucleus. This observation is correct only if
Nuclear reaction occurs only when the energy is released, which is possible only when \({E_2} > 2{E_1}\).
PHXII13:NUCLEI
363691
If the binding energy per nucleon in \(L i^{7}\) and \(He^{4}\) nuclei are 5.60 and \(7.06\,MeV\), respectively, then the energy of the reaction \(Li^{7}+p \rightarrow 2 He^{4}\) is
1 \(17.28\,MeV\)
2 \(1.73\,MeV\)
3 \(1.46\,MeV\)
4 \(2.73\,MeV\)
Explanation:
\({Q=\left(2 B \cdot E \cdot_{H e}-B \cdot E \cdot_{L i}\right)}\) \({=(2 \times 7.06 \times 4-5.60 \times 7) {Mev}}\) \({=17.28 {MeV}}\)
363688
Assertion : Nuclei having mass number about 60 are most stable. Reason : When two or more light nuclei are combined into a heavier nucleus, then the binding energy per nucleon will increase.
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:
The \((B.E{\rm{/}}A)\) value for \(Fe\,{\rm{ - }}\,56\) is \(8.8\,MeV\) and for \(Ni\,{\rm{ - }}\,62\) is \(8.7{\mkern 1mu} MeV{\rm{/nucleon}}\). Nuclei with a mass number, \(A\), close to 60 exhibit the maximum binding energy per nucleon, approximately \(8.7\,MeV\). Consequently, these nuclei are considered to be the most stable. Reason is fact about fusion. So correct option is (2).
PHXII13:NUCLEI
363689
In a nuclear reaction some mass converts into energy. In this reaction total \(B\).\(E\) of reactants when compared with that of products is
1 always greater
2 always less
3 either greater or less
4 always equal
Explanation:
Conceptual Question
PHXII13:NUCLEI
363690
Let \({E_1}\) and \({E_2}\) be the binding energies of two nuclei \(\,A\) and \(B\). It is observed that two nuclei of \(\,A\) combine together to form a \(B\) nucleus. This observation is correct only if
Nuclear reaction occurs only when the energy is released, which is possible only when \({E_2} > 2{E_1}\).
PHXII13:NUCLEI
363691
If the binding energy per nucleon in \(L i^{7}\) and \(He^{4}\) nuclei are 5.60 and \(7.06\,MeV\), respectively, then the energy of the reaction \(Li^{7}+p \rightarrow 2 He^{4}\) is
1 \(17.28\,MeV\)
2 \(1.73\,MeV\)
3 \(1.46\,MeV\)
4 \(2.73\,MeV\)
Explanation:
\({Q=\left(2 B \cdot E \cdot_{H e}-B \cdot E \cdot_{L i}\right)}\) \({=(2 \times 7.06 \times 4-5.60 \times 7) {Mev}}\) \({=17.28 {MeV}}\)
363688
Assertion : Nuclei having mass number about 60 are most stable. Reason : When two or more light nuclei are combined into a heavier nucleus, then the binding energy per nucleon will increase.
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:
The \((B.E{\rm{/}}A)\) value for \(Fe\,{\rm{ - }}\,56\) is \(8.8\,MeV\) and for \(Ni\,{\rm{ - }}\,62\) is \(8.7{\mkern 1mu} MeV{\rm{/nucleon}}\). Nuclei with a mass number, \(A\), close to 60 exhibit the maximum binding energy per nucleon, approximately \(8.7\,MeV\). Consequently, these nuclei are considered to be the most stable. Reason is fact about fusion. So correct option is (2).
PHXII13:NUCLEI
363689
In a nuclear reaction some mass converts into energy. In this reaction total \(B\).\(E\) of reactants when compared with that of products is
1 always greater
2 always less
3 either greater or less
4 always equal
Explanation:
Conceptual Question
PHXII13:NUCLEI
363690
Let \({E_1}\) and \({E_2}\) be the binding energies of two nuclei \(\,A\) and \(B\). It is observed that two nuclei of \(\,A\) combine together to form a \(B\) nucleus. This observation is correct only if
Nuclear reaction occurs only when the energy is released, which is possible only when \({E_2} > 2{E_1}\).
PHXII13:NUCLEI
363691
If the binding energy per nucleon in \(L i^{7}\) and \(He^{4}\) nuclei are 5.60 and \(7.06\,MeV\), respectively, then the energy of the reaction \(Li^{7}+p \rightarrow 2 He^{4}\) is
1 \(17.28\,MeV\)
2 \(1.73\,MeV\)
3 \(1.46\,MeV\)
4 \(2.73\,MeV\)
Explanation:
\({Q=\left(2 B \cdot E \cdot_{H e}-B \cdot E \cdot_{L i}\right)}\) \({=(2 \times 7.06 \times 4-5.60 \times 7) {Mev}}\) \({=17.28 {MeV}}\)
363688
Assertion : Nuclei having mass number about 60 are most stable. Reason : When two or more light nuclei are combined into a heavier nucleus, then the binding energy per nucleon will increase.
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:
The \((B.E{\rm{/}}A)\) value for \(Fe\,{\rm{ - }}\,56\) is \(8.8\,MeV\) and for \(Ni\,{\rm{ - }}\,62\) is \(8.7{\mkern 1mu} MeV{\rm{/nucleon}}\). Nuclei with a mass number, \(A\), close to 60 exhibit the maximum binding energy per nucleon, approximately \(8.7\,MeV\). Consequently, these nuclei are considered to be the most stable. Reason is fact about fusion. So correct option is (2).
PHXII13:NUCLEI
363689
In a nuclear reaction some mass converts into energy. In this reaction total \(B\).\(E\) of reactants when compared with that of products is
1 always greater
2 always less
3 either greater or less
4 always equal
Explanation:
Conceptual Question
PHXII13:NUCLEI
363690
Let \({E_1}\) and \({E_2}\) be the binding energies of two nuclei \(\,A\) and \(B\). It is observed that two nuclei of \(\,A\) combine together to form a \(B\) nucleus. This observation is correct only if
Nuclear reaction occurs only when the energy is released, which is possible only when \({E_2} > 2{E_1}\).
PHXII13:NUCLEI
363691
If the binding energy per nucleon in \(L i^{7}\) and \(He^{4}\) nuclei are 5.60 and \(7.06\,MeV\), respectively, then the energy of the reaction \(Li^{7}+p \rightarrow 2 He^{4}\) is
1 \(17.28\,MeV\)
2 \(1.73\,MeV\)
3 \(1.46\,MeV\)
4 \(2.73\,MeV\)
Explanation:
\({Q=\left(2 B \cdot E \cdot_{H e}-B \cdot E \cdot_{L i}\right)}\) \({=(2 \times 7.06 \times 4-5.60 \times 7) {Mev}}\) \({=17.28 {MeV}}\)
