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f the surface tension of water is 7 xx ...

f the surface tension of water is ` 7 xx 10^(-2)` N/m then the rise of water is ` 7 xx 10^(-2)` N/m then the rise of water in a capillary tube of diameter 0.35 mm will be

A

4 cm

B

2 cm

C

8 cm

D

` 3.5 ` cm

Text Solution

Verified by Experts

The correct Answer is:
C
` h = (2Tcostheta)/(rhogr) = (2xx7xx10^(-2)xx1 xx2 )/(10^(3) xx10xx35xx10^(-5))`
= 0.08 m = 8 cm
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