Given, mass of neutron 
, mass of a proton 
and mass of 
. Then, the energy required to separate 
into its constituents is
A
12.7 MeV
B
931.5 MeV
C
D
127.5 MeV
Text Solution
Verified by ExpertsThe correct answer is:
D
Given, mass of neutron 
,
mass of a proton 
, mass of 
Mass number, 
,
Atomic number, 
Number of protons 
Number of neutrons 
Therefore, mass of 8 neutrons 
Mass of 8 protons 
So, the expected mass of 
nucleus,
Thus, mass defect,
Since, 
For 
, 
Thus, the energy required to separate 
into its constituents is 127.5 MeV.
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