Momentum and CollisionHard

Question

A liquid drop of diameter D breaks into 27 tiny drops. The resultant change in energy is : -

Options

A.2π TD2   
B.4π TD2   
C.π TD2   
D.None of these

Solution

ᐃSE = 4πR2T(n1/3 - 1)
= 4π [T(27)1/3-1 = 2πD2T]

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