A paper disc of radius `R` from which a hole of radius `r` is cut out is floating in a liquid of the surface tension `S`. The fo

A paper disc of radius `R` from which a hole of radius `r` is cut out is floating in a liquid of the surface tension `S`. The force on the disc due to the surface tension is
A. `Sxx2piR`
B. `Sxx2pir`
C. `Sxx2pi(R-r)`
D. `Sxx2pi(R+r)`

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A paper disc of radius `R` from which a hole of radius `r` is cut out is floating in a liquid of the surface tension `S`. The force on the disc due to

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