In a nuclear reaction, the mass defect is 2 x (10^{-6})g. Calculate the energy released given that the velocity of light is 3 x (10^{8}ms^{-1})
-
A.
9 x (10^{7})J -
B.
1.8 x (10^{8})J -
C.
1.8 x (10^{9})J -
D.
9 x (10^{-10})J -
E.
3.6 x (10^{11})J
Correct Answer: Option B
Explanation
E=(mc^2 = 2times10^{-6} times10^{-3}times(3times10^{8})^2=1.8times10^{8})