A capillary tube of radius r is dipped i...

A capillary tube of radius r is dipped in a liquid of density `rho ` and surface tension S. if the angle of contanct is `theta`, the pressure difference between the two surface in the beaker and the capillary ?

`sigma/r cos theta`

`(2sigma)/r cos theta`

`sigma/(r cos theta)`

`(2sigma)/(r cos theta)`

Text Solution

Verified by Experts

The correct Answer is:

`DeltaP = (2sigma cos theta)/r`

Topper's Solved these Questions

SURFACE TENSION
ERRORLESS|Exercise PAST YEARS QUESTIONS|12 Videos
SURFACE TENSION
ERRORLESS|Exercise ASSERTION & REASON|11 Videos
SURFACE TENSION
ERRORLESS|Exercise NCERT BASED QUESTIONS (Pressure Difference)|17 Videos
SIMPLE HARMONIC MOTION
ERRORLESS|Exercise Assertion & Reason|15 Videos
THERMODYNAMICS
ERRORLESS|Exercise ASSERTION AND REASON|20 Videos

Similar Questions

Explore conceptually related problems

A capillary tube of radius r is lowered into a liquid of surface tension T and density rho . Given angle of contact =0^(@) . The work done by surface tension will be

A capillary tube of radius r is lowered into a liquid of surface tension T and density rho . Given angle of contact =0^(@) . What is the potential energy acquired by the liquid in the capillary?

A capillary tube of radius r is placed in a liquid I the angle of contact is theta , the radius of curvature R of the meniscus in the capillary is

When a capillary tube of radius r is dipped vertically in a liquid of surface tension T, the liquid rises to a height h in the tube above the level outside the tube . If the angle of contact is theta the density of the liquid is rho then the pressure difference between the points A and B is

A capillary tube of inner diameter 0.5 mm is dipped in a liquid of specific gravity 13.6 and having surface tension 545 dyn/cm(angle of contact 130^(@) ) . Find the depression or elevation in the tube .

A capillary tube with inner cross-section in the form of a square of side a is dipped vertically in a liquid of density rho and surface tension rho which wet the surface of capillary tube with angle of contact theta . The approximate height to which liquid will be raised in the tube is : (Neglect the effect of surface tension at the corners of capillary tube)

The lower end of a capillary tube of radius r is placed vertically in water of density rho , surface tension S. The rice of water in the capillary tube is upto height h, then heat evolved is

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

ERRORLESS-SURFACE TENSION-NCERT BASED QUESTIONS (Capillarity)

For different capillaries of radiusr,the condition of liquid rise (h) ...
Text Solution
|
In a capillary tube, water rises to 3 mm . The height of water that wi...
Text Solution
|
A vessel, whose bottom has round holes with diameter of 0.1 mm , is fi...
Text Solution
|
By inserting a capillary tube upto a depth l in water, the water rises...
Text Solution
|
Two capillary tubes of radii 0.2 cm and 0.4 cm are dipped in the same ...
Text Solution
|
When a capillary is dipped in water, water rises 0.015 m in it. If the...
Text Solution
|
Water rises upto a height h in a capillary on the surface of earth in ...
Text Solution
|
During capillary rise of a liquid in a capillary tube, the surface of ...
Text Solution
|
Two capillary tubes of same diameter are put vertically one each in tw...
Text Solution
|
Water rises in a vertical capillary tube up to a height of 2.0 cm. If ...
Text Solution
|
The surface tension for pure water in a capillary tube experiment is
Text Solution
|
A liquid rises to a height of 1.8 cm in a glass capillary A another g...
Text Solution
|
A capillary tube of radius r is dipped in a liquid of density rho and...
Text Solution
|
The rise in the water level in a capillary tube of radius 0.07 cm when...
Text Solution
|
A capillary tube of radius r is immersed in water and water rises in t...
Text Solution
|
In a capillary rise experiment, the water level rises to a height of 5...
Text Solution
|
The lower end of a capillary tube is dipped in water. Water rises to a...
Text Solution
|
Which graph represents the variation of surface tension with temperatu...
Text Solution
|