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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A small ball is suspended from point O by a thread of length l. A nail is driven into the wall at a distance of l/2 below O, at A. The ball is drawn aside so that the thread takes up a horizontal position at the level

A small ball is suspended from point O by a thread of length l. A nail is driven into the wall at a distance of l/2 below O, at A. The ball is drawn aside so that the thread takes up a horizontal position at the level

A small ball is suspended from point O by a thread of length l. A nail is driven into the wall at a distance of l/2 below O at A. The ball is drawn aside so that the thread takes up a horizontal position at the level