Question

A mercury drop of radius 1 cm is sprayed into \(10^6\) drops of equal size. The energy expressed in joules is (surface tension of mercury is \(460 \times 10^{-3} \, \text{N/m}\)).

• A. \(0.057\)
• B. \(5.7\)
• C. \(5.7 \times 10^{-4}\)
• D. 5.7 × 10⁻6

Hint:

Surface energy change depends only on change in surface area: E = T Δ A Breaking droplets increases surface area significantly.

Answer 1

The Correct Option is B