## Question

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

### Solution

10 *g*

Mass of water in first tube is

Now, surface tension,

Where *h*’ is the height to which water rises in the second tube and *r*’ its radius. Since *r*’ = 2*r*.*h*’ = *h*/2. Therefore, the mass of water of water in the second capillary tube is

= 2*m*

.

#### SIMILAR QUESTIONS

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