Question 5A small needle is carefully floated on water in a beaker. when a few drops of kerosene are introduced into the water, the needle sinks. Which of the following statement correctly explain(s) the observation?
A small needle is carefully floated on water in a beaker. when a few drops of kerosene are introduced into the water, the needle sinks. Which of the following statement correctly explain(s) the observation?
i. There is tension on the water surface
ii. Kerosene reduces the density of water so that the needle becomes denser than water
iii..Kerosene reduces the surface tension of water
Objective