The radius of a soap bubble is r and the surface tension of soap solution is T. Keeping the temperature constant, the extra energy needed to double the radius of the soap bubble by blowing, is. is the extra energy needed to double the radius of the soap bubble by blowing The radius of a soap bubble is r and the surface tension of soap solution is T. Keeping the temperature constant September 12, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 13 - Fluid Mechanics , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related