The work done in increasing the size of a soap film from 10 cmx 6 cm to 10 cm x 11 cm is 3 x10^4 joule. The surface tension of the film is - VgyanHub

Question:

4.The work done in increasing the size of a soap film from 10 cmx 6 cm to 10 cm x 11 cm is 3 x10^4 joule. The surface tension of the film is

Options :

a) 1.5x10^-2 N/m
b) 3.0x10^-2 N/m
c) 6.0x10^-2 N/m
d) 11.0x10^-2 N/m

Answer :

b) 3.0×10^-2 N/m

Answer Steps :

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