A steel needle floating on water, sinks when kerosine is added to the water. This is because the kerosine
A
increased the surface tension of the water
B
reduces the density of the water
C
reduces the surface tension of the water
D
reduces the upthrust on the needle
Verified Correct Answer: C.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #34274)