A cylinder with a movable piston contain...

A cylinder with a movable piston contains air under a pressure `p_(1)` and a soap bubble of radius 'r' . The pressure `p_(2)` to which the air should be compressed by slowly pushing the poston into the cylinder for the soap bubble to reduce its size by hald will be (The surface tension is `sigma` and the temperature T is maintained constant).

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A cylinder with a movable piston contains air under a pressure p_(1) and a soap bubble of radius 'r' . The pressure p_(2) to which the air should be compressed by slowly pushing the piston into the cylinder for the soap bubble to reduce its size by half will be (The surface tension is sigma and the temperature T is maintained constant).

A cylinder with a movable piston contains air under a pressure p_(1) and a soap bubble of radius r . The pressure p_(2) to which the air should be compressed by slowly pushing the piston into the cylinder for the soap bubble to reduce its size by half will be : (The surface tension is sigma , and the temperature T is maintained constant)

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