Two small drops of mercury, each of radi...

Two small drops of mercury, each of radius `R`, coalesce to form a single large drop. The ratio of the total surface energies before and after the change is

A

`1:2^(1//3)`

B

`2^(1//3):1`

C

`2:1`

D

`1:2`

Text Solution

Verified by Experts

The correct Answer is:

B

`W=TxxDeltaA`

Topper's Solved these Questions

MECHANICAL PROPERTIES OF FLUIDS
NARAYNA|Exercise EXERCISE - II (H.W) (EXCESS PRESSURE IN A LIQUID DROP AND IN A SOAP BUBBLE|5 Videos
MATHEMATICAL REVIEW & PHYSICAL WORLD
NARAYNA|Exercise C.U.Q|13 Videos
MECHANICAL PROPERTIES OF SOLIDS
NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

Two small drop of mencury , each of radius R coulesece in from a simple large drop The ratio of the total surface energies before and after the change is

Two small drops of mercury each of radius r form a single large drop. The ratio of surface energy before and after this change is

64 small drops of mercury each of radius r and charge q coalesce to form a big drop. The ratio of the surface density of charge of each small drop withh that of big drop is

A number of small drops of mercury adiabatically coalesce to form a single drop. The temperature of the drop will

Two drops of equal radius coalesce to form a bigger drop. What is ratio of surface energy of bigger drop to smaller one?

Two mercury drops each of radius r merge to form a bigger drop. Calculate the surface energy released.

Some drops each of radius r coalesce to form a large drop of radius R . The surface tension T. Find the change in surface energy per unit volume?

Eight droplets of water each of radius 0.5 mm when coalesce into single drop , then the change in surface energy will be ,

n droplets of equal size and each of radius r coalesce to form a bigger drop of radius R. the energy liberated is equal to

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-EXERCISE - III

By sucking a straw a student can reduce the pressure in his lungs to 7...
Text Solution
|
A drop of water of radius 0.0015 mm is falling in air .If the cofficie...
Text Solution
|
A spherical body of diameter D is falling in viscous medium. Its termi...
Text Solution
|
A non-viscous fluid of constant density of 1000kg//m^(3) flows in stre...
Text Solution
|
The work done in increasing the size of a rectangular soap film with d...
Text Solution
|
Surface area of a soap bubble is 1.3xx10^(-4) m^2. The work done to ...
Text Solution
|
If the radius of a soap bubble is four times that of another, then the...
Text Solution
|
Two small drops of mercury, each of radius R, coalesce to form a singl...
Text Solution
|
A frame made of metalic wire enclosing a surface area A is covered wit...
Text Solution
|
The potential energy of molecule on the surface of a liquid as compare...
Text Solution
|
The wattability of a surface by a liquid depends primarily on
Text Solution
|
A certain number of spherical drops of a liquid of radius r coalesce t...
Text Solution
|
A boy has 60 kg-wt. He wants to swim in a river with the help of a woo...
Text Solution
|
Two non-mixing liquids of densities rho and (n gt1) are put in a cont...
Text Solution
|
A hole is made at the bottom of the tank filled with water (density =1...
Text Solution
|
A capillary tube is attached horizontally to a constant pressure head ...
Text Solution
|
An engine pumps water through a hose pipe. Water passes through the pi...
Text Solution
|
A wind with speed 40 m//s blows parallel to the roof of a house. The a...
Text Solution
|
The cylindrical tube of a spray pump has radius R, one end of which ha...
Text Solution
|
Water rises to height h in capillary tube. If the length of capillary ...
Text Solution
|