A mercury drop of radius \( 1 \mathrm{~cm} \) is sprayed into \( 10...

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A mercury drop of radius \( 1 \mathrm{~cm} \) is sprayed into \( 10^{6} \) drops of equal size. The energy expressed in joule is (surface tension of Mercury is \( 460 \times 10^{-3} \mathrm{~N} / \mathrm{m} \) )
(a) \( 0.057 \)
(b) \( 5.7 \)
(c) \( 5.7 \times 10^{-4} \)
(d) \( 5.7 \times 10^{-6} \)
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