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Properties of Matter question

2022 · 30 Jun · Shift 1 · Q46
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  5. /2022 · 30 Jun · Shift 1 · Q46

Properties of Matter question

2022 · 30 Jun · Shift 1 · Q46

JEE MainPhysicsProperties of MatterMCQ+4 / −1
An air bubble of negligible weight having radius r rises steadily through a solution of density σ\sigmaσ at speed v. The coefficient of viscosity of the solution is given by :
  1. A
    η=4rσg9v\eta = {{4r\sigma g} \over {9v}}η=9v4rσg​
  2. B
    η=2r2σg9v\eta = {{2{r^2}\sigma g} \over {9v}}η=9v2r2σg​
  3. C
    η=2πr2σg9v\eta = {{2\pi {r^2}\sigma g} \over {9v}}η=9v2πr2σg​
  4. D
    η=2r2σg3πv\eta = {{2{r^2}\sigma g} \over {3\pi v}}η=3πv2r2σg​
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