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AP EAMCET202018 Sep 2020Morning ShiftPhysicsMechanical Properties of FluidsActual

The radius of the bore of a capillary tube is (r ) and the angle of contact of the liquid is ( ). When the tube is dipped in the liquid, the radius of curvature of the meniscus of liquid rising in the tube is

Options

  1. A(r )
  2. B( r )
  3. C(r )
  4. D( r )

Correct answer

D. ( r )

Step-by-step solution

The given situation is shown in the figure, where, (r= ) radius of capillary tube, (R= ) radius of meniscus and ( = ) angle of contact. From figure, ( r R = R= r )

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