If 1000 droplets of water of surface tension 0.07 N/m. having same radius 1 mm each, combine to from a single drop. In the process the released surface energy is- (Take 
)
Text Solution
Verified by ExpertsThe correct answer is:
B
R=10mm
T x 1000 x 4 
(10 -3 ) 2 - T x 4 
(10 x 10 -3 ) 2 = 
E
E = 4 x 
x 7 x 10 -2 [1000 - 100] x 10 -6
E = 7.92 x 10 -4 J
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A Spherical ball of radius 1mm and density 10.5 g/cc is dropped in glycerine of coefficient of visc…
A spherical drop of liquid splits into 1000 identical spherical drops. If u i is the surface energy…
A metal block of base area 0.20 m 2 is placed on a table, as shown in figure. A liquid film of thic…
The surface of water in a water tank of cross section area 750 cm 2 on the top of a house is h m. a…
An air bubble of diameter 6 mm rises steadily through a solution of density 1750 kg m -3 at the rat…
Figure below shows a liquid being pushed out of the tube by a piston having area of cross section 2…