CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

A capillary tube of radius R is immersed in water and water rises in it to a height H. Mass of water in the capillary tube is M, If the radius of the tube is doubled mass of water that will rise in capillary tube water be


A
2M
loader
B
M
loader
C
M2
loader
D
4M
loader

Solution

The correct option is A 2M
Mass of water in capillary rise $$= Ah\rho$$
$$A=$$ area of cross-section, $$h=$$ height, $$\rho = $$ density
$$\Rightarrow m = (\pi r^2)h\rho = \pi r^2 \times \dfrac{2\sigma \cos\theta}{r\rho g} $$
$$\Rightarrow m \propto r$$
$$\therefore$$ Doubling radius $$\Rightarrow$$mass will also get doubled
$$m'=2 M$$

Physics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image