Properties Of Solids And Liquids Question 388
Question: A wooden stick 2m long is floating on the surface of water. The surface tension of water 0.07 N/m. By putting soap solution on one side of the sticks the surface tension is reduced to 0.06 N/m. The net force on the stick will be [Pb. PMT 2002]
Options:
A) 0.07 N
B)0.06 N
C) 0.01 N
D) 0.02 N
Show Answer
Answer:
Correct Answer: D
Solution:
Net force on stick$ =F _{1}-F _{2}=(T _{1}-T _{2})l $
$ =(0.07-0.06)l=0.01\times 2=0.02N $
