A) \[\text{4}.\text{4 }\times \text{ 1}{{0}^{-\text{19}}}J\]
B) \[\text{2}.\text{5 }\times \text{ 1}{{0}^{-\text{19}}}\text{ J}\]
C) \[\text{1}.\text{25 }\times \text{ 1}{{0}^{-\text{17}}}\text{ J}\]
D) \[\text{2}.\text{5 }\times \text{ 1}{{0}^{-\text{17}}}\text{ J}\]
Correct Answer: A
Solution :
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