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A beaker containing an ideal fluid execu...

A beaker containing an ideal fluid executes plane `SHM` in a horizontal plane according to the equation `x=(sqrt(3)g)/(omega^(2))sinomegat`, `O` being the mean position. A bob is suspended at `S` through a string of length `L` as shown in the figure. The line `SO` is vertical. Assuming `L gtgt (sqrt(3)g)/(omega^(2))`.
The direction of buoyant force at time `t=pi//2omega` is best represented by

A

B

C

D

Text Solution

Verified by Experts

`a=`acceleration of beaker `= -sqrt(3) g sin omega t`
At `t=pi//2omega`, `a=-sqrt(3)g`
Pressure at `B gt ` Pressure at `A`
Horizontal comp. of Buoyant force acts towards left.
`:. `Direction of buoyant force.
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