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COMEDK Exam 2013 Solved Paper

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Question : 22

Total: 180

A thread is tied slightly loose to a wire frame as shown in figure and the frame is dipped into a soap solution and taken out. The frame is completely covered with the film. When the portion A is punctured with a pin, the thread

becomes concave towards A
becomes convex towards 5A
Either (a) or (b) depending on the size of A with respect to B
remains in the initial position

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