Question

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 = 1000 kg m. g = 9.81 ms
)
(1) 0.11 Nm
(2) 0.7 Nm-
(3) 0.072 Nm-1 (4) None of these​

Answer 1

Answer:

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