Question:
The figures show four different schematics of a flexible thread. If the ends are pulled apart, which of the schematic(s) will form a knot?
The figures show four different schematics of a flexible thread. If the ends are pulled apart, which of the schematic(s) will form a knot?
Show Hint
When observing schematics of flexible threads, identify loops that would interlock when the ends are pulled.
Updated On: Jan 13, 2026
- A
- B
- C
- D
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Verified By Collegedunia
The Correct Option is A, B
Solution and Explanation
Step 1: Understanding the problem.
A knot is formed when a loop is created and the ends are pulled through, creating an interlocking pattern. The key is to observe which schematic forms a loop that would result in a knot when pulled.
Step 2: Analyzing the schematics.
- (A) shows a loop that will form a knot when the ends are pulled. - (B) also shows a loop that forms a knot. - (C) does not form a knot as the ends are not in a way that would interlock. - (D) similarly does not form a knot.
\[ \boxed{(A) \text{ and } (B) form knots.} \]
A knot is formed when a loop is created and the ends are pulled through, creating an interlocking pattern. The key is to observe which schematic forms a loop that would result in a knot when pulled.
Step 2: Analyzing the schematics.
- (A) shows a loop that will form a knot when the ends are pulled. - (B) also shows a loop that forms a knot. - (C) does not form a knot as the ends are not in a way that would interlock. - (D) similarly does not form a knot.
\[ \boxed{(A) \text{ and } (B) form knots.} \]
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