Soap bubble of radius (1/√√) c cm is expanded to a bubble of radius (2/√√) c π cm. If the surface tension of soap solution is 30 dyne/cm, then the workdone will be, 360 erg 240 erg (a) 120 erg (c) 720 erg (b) (d)
Soap bubble of radius (1/√√) c cm is expanded to a bubble of radius (2/√√) c π cm. If the surface tension of soap solution is 30 dyne/cm, then the workdone will be, 360 erg 240 erg (a) 120 erg (c) 720 erg (b) (d)
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Transcribed Image Text:Soap bubble of radius (1/√√) cm is
expanded to a bubble of radius (2√7)
the surface tension of soap solution is 30
dyne/cm, then the workdone will be,
360 erg
240 erg
(a)
(c)
120 erg
720 erg
(b)
(d)
T) cm. If
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