1.

If an electron and a positron annihiliate, then the energy released is                                       [DCE 2001; AIIMS 2004]

A.            \[3.2\times {{10}^{-13}}J\]     
B.            \[1.6\times {{10}^{-13}}J\]
C.            \[4.8\times {{10}^{-13}}J\]     
D.            \[6.4\times {{10}^{-13}}J\]
Answer» C.            \[4.8\times {{10}^{-13}}J\]     


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