Question
Question: The energy released when 1 g of matter is annihilated is –...
The energy released when 1 g of matter is annihilated is –
A
9 × 1013 J
B
2.5 × 107 kWh
C
Both (1) & (B97)
D
None of these
Answer
2.5 × 107 kWh
Explanation
Solution
E = mc2 = 10–3 × (3 × 108)2 = 9 × 1013 J
E = 36×1059×1013kWh = 2.5 × 107 kWh