Q. A needle or a pin floats on the surface of water because of
✅ Correct Answer: (A)
Surface tension
Explanation: The pin or needle floats because of an invisible elastic skin on the surface of the water. This elastic skin is called surface tension. Surface tension of the water leads to forces strong enough to support the needle’s weight.
Explanation by: Team MCQ Buddy
The pin or needle floats because of an invisible elastic skin on the surface of the water. This elastic skin is called surface tension. Surface tension of the water leads to forces strong enough to support the needle’s weight.