Q. Li nucleus has three protons and four neutrons. Mass of lithium nucleus is 7.016005 $amu$. Mass of proton is 1.007277 $amu$ and mass of neutron is 1.008665 $amu.$ Mass defect for lithium nucleus in $amu$ is
A) 0.04048 $amu$
B) 0.04050$\ amu$
C) 0.04052$\ amu$
D) 0.04055$\ amu$
Explanation
The correct answer is Option B: 0.04050$\ amu$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.