10 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

Question

10 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 tension in the thread will be a R T c RT b 2RT d TR T

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