A) \[1.5\times {{10}^{-10}}J\]
B) \[3\times {{10}^{-10}}J\]
C) \[4.5\times {{10}^{-10}}J\]
D) None of these
Correct Answer: B
Solution :
Mass of proton = mass of antiproton \[=1.67\times {{10}^{-27}}kg=1amu\] Energy equivalent to \[1\ amu=931\ MeV\] So energy equivalent to 2 amu \[=2\times 931\ MeV\] \[=1862\times {{10}^{6}}\times 1.6\times {{10}^{-19}}\]\[=2.97\times {{10}^{-10}}J\] \[=3\times {{10}^{-10}}J\].
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