Sixty-four spherical drops each of radius \( 2 \mathrm{~cm} \) and carrying \( 5 \mathrm{C} \) c...

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Sixty-four spherical drops each of radius \( 2 \mathrm{~cm} \) and carrying \( 5 \mathrm{C} \) charge combine to form a bigger drop. Its capacity is
(a) \( \frac{8}{9} \times 10^{-11} \mathrm{~F} \)
(b) \( 90 \times 10^{-11} \mathrm{~F} \)
(c) \( 1.1 \times 10^{-11} \mathrm{~F} \)
(d) \( 9 \times 10^{11} \mathrm{~F} \)
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