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A capillary tube of radius r is immersed...

A capillary tube of radius r is immersed in water and water rises in to a height h. The mass of water in the capillary tube is 5g. Another capillary tube of radius 2 r is immersed in water. The mass of water that will rise in this tube is

A

5.0g

B

10.0g

C

20.0g

D

2.5g

Text Solution

Verified by Experts

The correct Answer is:
B
In a capillary tube force of surface tension balances the weight of eater in capillary tube
`F_(s)= 2pi r T cos theta= mg`
Here, T and `theta` are constant
So, `m prop r`
Hence, `(m_(2))/(5.0)= (2r)/(r )`
`rArr m_(2)= 10.0g`
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