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A ring is cut with inner radius 4.85cm a...

A ring is cut with inner radius 4.85cm and outer radius 4.95cm supported horizontally from one of the pans in a balance so that it comes in contact with the water in vessel.If surface tension of water is `70times10^(-3)N/m`,then the extra mass in the outer pan required to pull the ring away from water nearly in grams is? (g=10m/`s^(2)`)

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