The change in mass of fuel during a nuclear reaction is 2.0 x 10-27 kg. Calculate the amount of energy released. (Speed of light = 2.0 x 108ms-1)
-
A.
1.8 x 10-10J -
B.
9.0 x 10-11J -
C.
6.0 x 10-19J -
D.
1.2 x 10-45J
Correct Answer: Option A
Explanation
Q = (Delta MC^2)
= 2 x 10-27(3 x 10)2
= 1.8 x 10-10J