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There is a horizontal film of soap solut...

There is a horizontal film of soap solution. On it a thread is placed in the form of a loop. The film is pierced inside the loop and the thread becomes a circular loop of radius `R`. If the surface tension of the loop be `T`, then what will be the tension in the thread?

A

`piR^(2)//T `

B

`piR^(2)//T `

C

`2piR T `

D

R T

Text Solution

Verified by Experts

The correct Answer is:
D
`T xxpi R^(2) = F xx pi R, F = TR`
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