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Water rises to a height of 20 xx 10^-3 m...

Water rises to a height of `20 xx 10^-3 m` in a capillary tube. If radius of the capillary tube is made (2/3) of its previous value, the height to which the water will rise in the tube is

A

`30 xx 10^-3 m`

B

`20 xx 10^-3 m`

C

`10 xx 10^-3 m`

D

`40 xx 10^-3 m`

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The correct Answer is:
A
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