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JIPMER 2010
Exam
JIPMER
Year
2010
Subject
Physics
Chapter
Mechanical Properties of Fluids

JIPMER 2010 · Physics · Mechanical Properties of Fluids

A square wire frame of size L is dipped in a liquid. On taking out...

A square wire frame of size LL is dipped in a liquid. On taking out a membrane is formed. If the surface tension of liquid is TT, then force acting on a frame will be

Options

  1. A2TL
  2. B4TL
  3. C8TL
  4. D16TL

Correct answer

C. 8TL

Step-by-step solution

Since, the wire frame is dipped in liquid, therefore its membrane has two free surfaces. Total length of square wire frame in contact of membrane =2×=2 \times perimeter of square =2×4L=8L=2 \times 4 L=8 L Hence, force acting on a frame F=Tl=T×8L=8TLF=T l=T \times 8 L=8 T L
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