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When a glass capillary tube of radius 0....

When a glass capillary tube of radius 0.015 cm is dipped in water, the water rises to a height of 15 cm within it. Assuming contact angle between water and glass to be 0°, the surface tension of water.is [pwaler = 1000 kg `m^(-3)` , g = 9.81 m`s^^(-2)` ]

A

`0.11Nm^(-1)`

B

`0.7 Nm^(-1)`

C

`0.072Nm^(-1)`

D

None of these

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