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JEE Main20244 Apr 2024Morning ShiftPhysicsMechanical Properties of FluidsActual

A soap bubble is blown to a diameter of 7 ~cm .36960 erg of work is done in blowing it further. If surface tension of soap solution is 40 dyne / cm then the new radius is______ cm Take ( = 22 7 )

Correct answer

0

Step-by-step solution

aligned & = U = S A & 36960 erg = 40 dyne cm 8 [( r )^2- ( 7 2 )^2 ] cm ^2 & r =7 ~cm aligned

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