Properties Of Solids And Liquids Question 203
Question: There is a horizontal film of soap solution. On it a thread is placed in the form of a loop. The film is pierced inside the loop and the thread becomes a circular loop of radius R. If the surface tension of the loop be T, then what will be the tension in the thread[RPET 1996]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: D
Solution:
Suppose tension in thread is F, then for small part
and
