When a long glass capillary tube of radius 0.015 cm is dipped in a liquid, the liquid rises to a height of 15 cm within it. If the contact angle between the liquid and glass to close to 0º, the surface tension of the liquid, in milliNewton m−1 , is  ρliquid=900   kgm−3,g=10  ms−2 (Give answer in closest integer)