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According to Stoke's law, the viscous drag force, on an oil drop is proportional to:

1. \( \sqrt{V} \)
2. \( V^{2} \)
3. \( V^{-1} \)
4. \( V \)

Correct answer: \( V \)

Solution

Stoke's law describes the drag force on a sphere moving through a viscous fluid as directly proportional to its velocity.

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