Who we are
Impact
Student
Tutor
Question
Two needles are floating on the surface of water. A hot needle when touches water surface between the needles, then they move:
Views: 1,447 students
Found 8 tutors discussing this question
Discuss this question LIVE
13 mins ago
Text solution
Verified
A needle(greased) floats on water due to the phenomena of surface tension.The phenomenon wherein the free surface of a liquid acts as a stretched elastic membrane in order to possess minimum surface area is called surface tension. Consider two needles floating on water and we introduce a hot needle in between touching the water surface. As we increase the temperature the surface tension decreases that means the molecular interaction between the molecules decreases so the two needles moves away from each other.
Was this solution helpful?
151
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice questions from similar books
Question 2
The free style women's swimming gold medal at Seol Olympic went to Heike Friendrich of Each Germany when she set a new Olympic record of minute and seconds. Assume that she covered most of the distance with a uniform speed and had to exert to maintain her speed. Calculate the average force of resistance offered by the water during the swim.
Stuck on the question or explanation?
Connect with our physics tutors online and get step by step solution of this question.
231 students are taking LIVE classes
| Question Text | Two needles are floating on the surface of water. A hot needle when touches water surface between the needles, then they move: |
| Answer Type | Text solution:1 |
| Upvotes | 151 |
