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When the capillary tube is lowered into water, the mass of water raised in the tube, above the outside water level is 5gm. If the radius of the tube is doubled, the mass of water that rises in the capillary tube above the outside water level is 

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a
1.25gm
b
5gm 
c
10gm
d
20gm

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detailed solution

Correct option is C

For a capillary tube

mg=2πr×Tcosθ

mr

when radius is doubled, mass also doubles. 

Hence, the answer is 10gms

 

 

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