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

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

1.	Calculate the work done in blowing a soap bubble of radius 2cm. Surface tension of soap solution =7xx10^(-2)Nm^(-1)
Answer» Solution :`r=2cm=2xx10^(-2)m` Surface TENSION `S=7xx10^(-2)Nm^(-1)` work done = surface area of soap bubble X surface tension `=8pir^(2)S` `=8xx(22)/(7)xx(2xx10^(-2))^(2)xx7xx10^(-2)=7.04xx10^(-4)J`