TS EAMCET · Physics · Mechanical Properties of Fluids
1000 spherical drops of water each \(10^{-8} \mathrm{~m}\) in diameter coalesce to form one large spherical drop. The amount of energy liberated in this process (in joule) is (surface tension of water is \(0.075 \mathrm{~N} / \mathrm{m}\) ).
- A \(10.75 \pi \times 10^{-15}\)
- B \(6.75 \pi \times 10^{-15}\)
- C \(8.65 \pi \times 10^{-15}\)
- D \(3.88 \pi \times 10^{-15}\)
Answer & Solution
Correct Answer
(B) \(6.75 \pi \times 10^{-15}\)
Step-by-step Solution
Detailed explanation
Volume of small spherical drops \(=\frac{4}{3} \pi r^3\) Volume of larger spherical drops \(=\frac{4}{3} \pi R^3\) \(n\) small spherical drops combine to form large drops.…
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