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The liquid drop of density rho, radius r...

The liquid drop of density `rho`, radius r and surface tension o oscillates with time period T. Which of the following expression for `T^2` is correct

A

`rhor^(3)//sigma`

B

`rhosigma//r^(3)`

C

`r^(3) sigma//rho`

D

None

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The correct Answer is:
A
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