Published by:
CGP EDU Academic Team
Published on: September 13, 2026
A water drop of radius 1cm is broken into 729 equal droplets. If surface tension of water is 75 dyne/cm, then the gain in surface energy upto first decimal place will be: [Given 
= 3.14]
Text Solution
Verified by ExpertsThe correct answer is:
C
Initial surface energy = TA
Where 
is surface tension and A is surface area
To get final radius of drops by volume conservation
Initial radius
final radius
Final surface energy
Gain in surface energy
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 capillary tube made of glass of radius is dipped vertically in a beaker filled with methylene io…
A small spherical droplet of density d is floating exactly half immerse in a liquid of density and…
A water drop of diameter cm is broken into 64 equal droplets. The surface tension of water is 0.075…
27 similar drops of mercury are maintained at each. All these spherical drops combine into a singl…
When a long glass capillary tube of radius is dipped in a liquid, the liquid rises to a height of …
A capillary tube whose inside radius is is dipped in water having surface tension . To what heigh…