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AP EAMCET201725 Apr 2017Evening ShiftPhysicsMechanical Properties of FluidsActual

In a cylinder provided with a piston, air is under pressure P₁ at a constant temperature ' t '. A soap bubble with radius ' r ' and surface tension ' T ' is lying inside the cylinder. To reduce the radius of the soap bubble to half, the required air pressure inside the cylinder is

Options

  1. A8 P ₁+ 24 ~T r
  2. B8 P ₁+ 3 ~T r
  3. C8 P ₁+ 2 ~T r
  4. D8 P ₁+ 12 ~T r

Correct answer

A. 8 P ₁+ 24 ~T r

Step-by-step solution

No solution. Refer to answer key.

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