Question

Objective Type Questions
The amount of work done in forming a soap film of
size 5 cm x 15 cm if surface tension is 10-2 N/m
(1) 3 x 104
(3)/1.5 x 10-4 J
2x 4.5 x 10-50
(4) 10-3 J​

Answer 1

Answer:Answer is 1.5×10*-4(option 2)

Soap bubble is 2 surfaces

Explanation:

Work done to form a soap film is equal to surface tension×2×area

=10*-2×2×5×15×10*-4

=150×10*-6

=1.5×10-4

I hope you understand well thank you