A rectangular film of liquid is extended from (4cm * 2cm) to(5cm * 4cm) If the work done is 3 * 10 ^ - 4 * e , the value of the surface tension of the liquid is2 - VgyanHub

Question:

2.A rectangular film of liquid is extended from (4cm * 2cm) to(5cm * 4cm) If the work done is 3 * 10 ^ – 4 * e , the value of the surface tension of the liquid is2

Options :

a) 8.0 Nm^-1
b) 0.250 Nm^-1
c) 0.125 Nm^-1
d) 0.2 Nm^-1

Answer :

c) 0.125 Nm^-1

Answer Steps :

Solution :-

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