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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

1 Medium

1 of 1

Application +4 | -1

A number of little droplets of a liquid of surface tension

T

, density

\rho

, all of same radius

r

, combine to form a single drop of radius

R

. If the total energy released in this process is converted into kinetic energy of the bigger drop, velocity of the bigger drop is

View answer and explanation

Correct option: B

\sqrt{\frac{6 T(R-r)}{R r \rho}}

Option B (

\sqrt{\frac{{6 T(R-r)}}{{R r \rho}}}

) is correct because it is the velocity of the bigger drop calculated by equating the energy released to the kinetic energy of the drop.

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