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31. Which of the following statements are true in case when two water drops coalesce and make a bigger drop

(a)  Energy is released

(b)  Energy is absorbed

(c)   The surface area of the bigger drop is greater than the sum of the surface areas of both the drops

(d)  The surface area of the bigger drop is smaller than the sum of the surface areas of both the drops

Ans. a,d

(8)

5/5 - (2 votes)

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