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An air bubble of 1 cm radius is rising at a steady rate of `2.00ms^-1` through a liquid of density `1.5gcm^-3`. Neglect density of air. If `g=1000cms^-2`, then the coeffieciet of viscosity of the liquid is
A. `0.166xx10^3` Poise
B. `1.66xx10^-3` poise
C. `166xx10^3` poise
D. `16.6xx10^3` poise

1 Answer

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Best answer
Correct Answer - B
Here `B=6pietarv`
`implies(4)/(3)pir^3rho_1g=6pietarv`
Put the values and get `eta=1.66xx10^3` poise

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