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When a capillary tube of radius 0.4 mm i...

When a capillary tube of radius 0.4 mm is dipped into water, the level of water inside the capillary rises to a height of 4cm above the surface of water. What is the surface tension of water if its angle of constant is zero and density is `1 gm//cm^2`

A

0.0784 N/m

B

0.0784 dyne/cm

C

0.784 N/m

D

0.784 dyne/cm

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The correct Answer is:
D
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