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A mercury drop of radius \( 1 \mathrm{~cm} \) is sprayed into \( 10^{6} \)
P droplets of equal sizes. The energy expended in this

W process is (surface tension of mercury is equal to \( 32 \times \) \( \left.10^{-2} \mathrm{~N} / \mathrm{m}\right) \)
(1) \( 3.98 \times 10^{-4} \mathrm{~J} \)
(2) \( 8.46 \times 10^{-4} \mathrm{~J} \)
(3) \( 3.98 \times 10^{-2} \mathrm{~J} \)
(4) \( 8.46 \times 10^{-2} \mathrm{~J} \)
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