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A capillary tube is dipped in water and ...

A capillary tube is dipped in water and water rises to a height of 4cm above the surrounding liquid. If the angle of contact is zero and radius of tube is 0.4 mm, the surface tension of liquid is

A

78.4 N/m

B

7.84 dyne/cm

C

784 N/m

D

78.4 dyne/cm

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The correct Answer is:
D
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MBD PUBLICATION-MECHANICAL PROPERTIES OF FLUID (LIQUID AT REST)-QUESTION BANK
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  15. The surface tension of water = 72xx10^-3J/m^2. Find the work done in s...

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