In a cylinder-piston arrangement air is under a pressure P_(1) and constant temperature t. A soap bubble lies insie the cylinder, surface tension is T. The soap bubble is to be reduced to half its size, the required pressure P_(2) to which air should be compressed by slowly pulling the piston into the cylinder is

In a cylinder-piston arrangement air is under a pressure P_(1) and con

1.	In a cylinder-piston arrangement air is under a pressure P_(1) and constant temperature t. A soap bubble lies insie the cylinder, surface tension is T. The soap bubble is to be reduced to half its size, the required pressure P_(2) to which air should be compressed by slowly pulling the piston into the cylinder is
Answer» `8P_(1)+(24T)/(R)` `8P_(1)+(3T)/(r)` `8P_(1)+(2T)/(r)` `8P_(1)+(12T)/(r)` ANSWER :A