Question

A glass capillary of radius 0.4 mm is inclined at 60∘ with the vertical in water. Find the length of water in the capillary tube.
(Given, surface tension of water =7×10⁻²N⁻¹).
A. 7.1 cm
B. 3.6 cm
C. 1.8 cm
D. 0.9 cm