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A light wire AB of length 10 cm can slid...

A light wire AB of length 10 cm can slide on a vertical frame as shown in figure. There is a film of soap solution trapped between the frame and the wire. Find the load W that should be suspended from the wire to keep it in equilibrium. Neglect friction. Surface tension of soat solution `=25 dyne cm^-1. Take g=10 ms^-2`

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