Question
The work done in blowing a soap bubble of 10cm radius is (surface tension of the soap solution is 3/100 N/m)
Options :
75.36 x 10⁻⁴ J
37.68 x 10⁻⁴ J
150.72 x 10⁻⁴ J
75.36 J
Answer :
75.36 x 10⁻⁴ J
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