the work done in blowing a soap bubble of diameter 4 CM. the surface tension of soap solution is
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2* 10⁻4 is the answer i hope its correct, but if wrong then sorry.
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We know that a bubble has two surfaces in contact with air, so the total surface area of the bubble will be
2* (4πR^2)
= 8πR^2
Now, work = surface tension* increase in surface area
= T* (8πR^2-0)
= 8πR^2T
Hope this helps!!
2* (4πR^2)
= 8πR^2
Now, work = surface tension* increase in surface area
= T* (8πR^2-0)
= 8πR^2T
Hope this helps!!
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