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Assertion : Hydrogen nuclei combines to form helium nuclei then energy is released.
Reason : Binding energy/nucleon of He is greater than hydrogen.
Options:
Reason : Binding energy/nucleon of He is greater than hydrogen.
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The correct answer is:
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Anuclear reaction in which two lighter nuclei are fused together to form a heavier nuclei is called nuclear fusion. In such a process, more stable nuclei come into existence i.e., binding energy per nucleon increases. Fusionreactionsarehighlyexothermicbecause of loss of mass during fusion. e.g.
$$
{ }_1^2 \mathrm{H}+{ }_1^2 \mathrm{H} \rightarrow{ }_2^4 \mathrm{He}+24.9 \mathrm{MeV}
$$
$$
{ }_1^2 \mathrm{H}+{ }_1^2 \mathrm{H} \rightarrow{ }_2^4 \mathrm{He}+24.9 \mathrm{MeV}
$$
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