17. A water drop takes the shape of a sphere in a oil while the oil drop spreads in water, because
(a) C.F. for water > A.F. for water and oil
(b) C.F. for oil > A.F. for water and oil
(c) C.F. for oil < A.F. for water and oil
(d) None of the above
Ans. a
(129)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)