486. The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________?

by
A. Vs = 418 (Gs – Gw) d [(3T + 70)/100]
B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
D. Vs = 218 (Gs – Gw)d [(3T + 70)/100]
✅ The correct answer is option B.

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