Q .     A rectangular film of liquid is extended from `(4cm\times 2cm)` to `(5cm\times 4cm)`. If the work done is `3\times 10^{-4}J`, the value of the surface tension of the liquid is

NEET 2016
A

`8.0 N m^{-1}`

B

`0.250 N m^{-1}`

C

`0.125 N m^{-1}`

D

`0.2 N m^{-1}`

HINT

`W=TA`

Today's Score

0
Success Rate: NAN %

Practice & Test

Sr. No.SubjectTagCorrectRecorded Answer