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The work done in increasing the size of a rectangular soap film with dimensions  cm to  is  J. The surface tension of the film in  is

a)

b)

c)

d)



Question ID - 57329 | SaraNextGen Top Answer

The work done in increasing the size of a rectangular soap film with dimensions  cm to  is  J. The surface tension of the film in  is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Change in surface energy  J

Work done  (change in area)

Now, change in surface energy  Work done

127 votes


127