A) \[6\pi \eta r{{v}_{0}}\]
B) \[12\pi \eta r{{v}_{0}}\]
C) \[18\pi \eta r{{v}_{0}}\]
D) \[24\pi \eta r{{v}_{0}}\]
Correct Answer: B
Solution :
[b] Relative to liquid, the velocity of sphere is \[2{{v}_{0}}\]upwards. \[\therefore \] Viscous force on sphere \[=12\pi \eta \,r{{v}_{0}}\]downwardsYou need to login to perform this action.
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