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 Z_{0} below the free surface of water in a container. Taking g = 10 m/s^{2}, density of water = 10^{3} kg/m^{3}, the value of Z_{0} is :

(1) 100 cm

(2) 10 cm

(3) 1 cm

(4) 0.5 cm