# Question - Surface Tension

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#### Question

'n' droplets of equal size of radius r coalesce to form a bigger drop of radius R. The energy liberated is equal to...................

(T =Surface tension of water)

(a) 4piR^2T[n^(1/3)-1]

(b) 4pir^2T[n^(1/3)-1]

(c) 4piR^2T[n^(2/3)-1]

(d)4 pir^2T[n^(2/3)-1]

#### Solution

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