ghtly loose to a wire frame as in figure and the frame is

Last updated: 6/8/2023

ghtly loose to a wire frame as in figure and the frame is dipped into a soap solution and taken out the frame is completely covered with the film When A is pricked wire frame Thread 1 thread will become concave on seeing from side A 2 thread will become concave on secing from side B 3 thread will become straight 4 thread will remain as it is