Calculate the work done in blowing a soap bubble of radius 2 cm. Surface tension of soap solution =7xx10^(-2)Nm^(-1)

Calculate the work done in blowing a soap bubble of radius 2 cm. Surfa

1.	Calculate the work done in blowing a soap bubble of radius 2 cm. Surface tension of soap solution =7xx10^(-2)Nm^(-1)
Answer» Solution :`r=2cm=2XX10^(-2)m` Surface tension `S=7xx10^(-2Nm^(-1)` Work done = surface area of SOAP bubble x surface tension `=8pir^(2)S` `=8xx22/7xx(2xx10^(-2))^(2)xx7xx10^(-2)=7.04xx10^(-4)J`