Home
Class 11
PHYSICS
The rise in the water level in a capilla...

The rise in the water level in a capillary tube of radius 0.07 cm when dipped vertically in a beaker containing water of surface tension `0.07 N m^(-1)` is (g = `10 m s^(-2)`)

A

2 cm

B

4 cm

C

1.5 cm

D

3 cm

Text Solution

Verified by Experts

The correct Answer is:
A
`h= (2sigma cos theta)/(rhorg)=(2xx0.07 xx1)/((0.07 xx10^(-2))(10^3)(10))`
[ Angle of contact `theta_("water")=0^@` ]
`= 2xx10^(-2)m = 2cm`
Promotional Banner

Similar Questions

Explore conceptually related problems

The rise in the water level in a capillary tube of radius 0.07 cm when dipped veryically in a beaker containing water of surface tension 0.07 N m^(-1) is (g = 10 m s^(-2) )

When a clean lengthy capillary tube is dipped vertically in a beaker containing water, the water rises to a height of 8 cm. What will happen if another capillary tube of length 4 cm and same radius is dipped vertically in the same beaker containing water. (angle of contact of water is 0^(@) )

Find the depth at which an air bubble of radius 0.7 mm will remain in equilibrium in water . Given surface tension of water = 7.0 xx 10^(-2) N/m.

Calculate the difference h in water levels in two commnicating capillary tube of radius 1 mm and 1.5 mm . Surface tension of water =0.07Nm^(-1)

A long capillary tube of radius 0.2 mm is placed vertically inside a beaker of water. If the surface tension of water is 7.2xx10^(-2)N//m the angle of contact between glass and water is zero, then determine the height of the water column in the tube.

If a capillary tube of radius 2 xx 10^(-4) m is is dipped vertically in a water of surface tension 7 xx 10^(-2) N/m and density 10^(3) "kg/m"^(3) then the height to which water rises will be

If a capillary tube of diameter 0.4 m is dipped vertically into water, then the height to which water rises in the capillary tube will be ,

If water rises in a capillary tube upto 3 cm . What is the diameter of capillary tube (Surface tension of water = 7.2 xx 10^(-2) N//m )

The surface tension of water is 0.072 N/m. The height to which water will rise in a capillary tube of bore diameter 0.048 cm will be (Angle of contact of water is zero , acceleration due to gravity is 10 m//s^2 and density of water =1000 kg//m^3 ).

A capillary tube of radius 0.25 mm is dipped vertically in a liquid of density 800kgm^(-3) and of surface tension 3xx10^(-2)Nm^(-2) . The angle of contact of liquid -glass is given by costheta=0.3 If g=10ms^(-2) the rise of liquid in the capillary tube is.. Cm