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A drop of radius r is broken into n equa...

A drop of radius r is broken into n equal drips. Calulate the work done if surface tension of water is T.

A

`r gt ((2 R sigma)/(3 rho g))^(1//3)`

B

`r gt ((2 sigma)/(3rho g))`

C

`(2sigma)/(r ) gt ` atmospheric pressure

D

`r gt ((2R sigma)/(3 rho g))^(2//3)`

Text Solution

Verified by Experts

Weight of drop > (surface tension ) ` xx 2pi R`
` rArr rho (4/3 pi r^3 ) g gt sigma xx 2pi r rArr r^3 gt 3/2 (R sigma)/(rho g)`
` rArr r gt (3/2 (R sigma)/(rho g))^(1//3)`
none of the given options is correct .
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MTG-WBJEE-BULK PROPERTIES OF MATTER-WB JEE PREVIOUS YEARS QUESTIONS (ONE OR MORE THAN ONE OPTION CORRECT TYPE)
  1. A drop of radius r is broken into n equal drips. Calulate the work don...

    Text Solution

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