A square wire frame of size L is dipped in a liquid. On taking out, a membrane is formed. If the surface tension of liquid is T, then force acting per unit length of the frame is VA) 2T (B) 4T (C) 8T (D) T
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Answer:
A perimeter of the square is 4L, on one side. So including both side, total length will be 8L.
The force, if T is surface tension (for per unit length) will be 8LT.
Explanation:
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Answer:
- Option A = 2T
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