NEET 2019 Physics and Chemistry

A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface tension of 2.5 × 10 ‌–2 N/m. The pressure inside the bubble equals at a point Z‌0 below the free surface of water in a container. Taking g = 10 m/s‌2, densityof water = 10‌3 kg/m‌3, the value of Z‌0 is :