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JEE PHYSICS MCQ: NUCLEI
1
Medium
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Analyzing
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Assertion: In a decay atom number of daughter nucleus reduces by 2 from the parent nucleus.
Reason:An Q-particle carries four units of mass.
Reason:An Q-particle carries four units of mass.
View answer and explanation
Correct option: A
If both assertion and reason are true and reason is correct explanation of assertion.
Option A is correct. In alpha decay, the atomic number of the daughter nucleus is reduced by 2 from the parent nucleus because an alpha particle carries two protons and two neutrons.
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