A \( 6.63 \times 10^{-16} \mathrm{~W} \)
B \( 6.63 \times 10^{-15} \mathrm{~W} \)
C \( 3.98 \times 10^{-39} \mathrm{~W} \)
D কোনটিই নয়
Correct Answer: Option A
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