Mp and MN are masses of proton and neutron, respectively, at rest. If they combine to form deuterium nucleus. The mass of the nucleus will be : [1]
A. less than Mp
B. less than (Mp + MN)
C. less than (Mp + 2MN)
D. greater than (Mp + 2MN)
Answer:B
Mp and MN are masses of proton and neutron, respectively, at rest. If they combine to form deuterium nucleus. The mass of the nucleus will be : [1]
A. less than Mp B. less than (Mp + MN) C. less than (Mp + 2MN) D. greater than (Mp + 2MN)
Explanation: We know that whenever there is fusion or fission or nucleoids and nuclei. Some mass is lost (mass defect) which converts into energy. So not mass of products is slightly less than that of substance.