43. A liquid film is formed in a loop of area 0.05 m2. Increase in its potential energy will be (T = 0.2 N/m)

area 0.05 m2. Increase in its potential energy will be (T = 0.2 N/m)    (a)        5 x 10-2J                    (b) 2 x 10-2j (c)         3 …