MHT CET · Physics · Mechanical Properties of Fluids
A square wire frame of each side \(L\) is dipped in soap solution. On taking out, a membrane is formed. If the surface tension of solution is \(T\), the force acting on the frame will be
- A \(8 T L\)
- B \(10 T L\)
- C \(2 T L\)
- D \(54 T L\)
Answer & Solution
Correct Answer
(A) \(8 T L\)
Step-by-step Solution
Detailed explanation
The perimeter of square is \(4 L\). So, including both sides, the total length will be \(8 L\).
If \(T\) is surface tension (force per unit length) then the total force will be \(8 T L\)
If \(T\) is surface tension (force per unit length) then the total force will be \(8 T L\)
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