Suppose three identical steel balls Q, R, and S, are plac...
Suppose three identical steel balls Q, R, and S, are placed on an undulating ground as illustrated in the diagram above. Which of the balls is/are in neutral equilibrium?
S only
Q only
R only
Q and S only
Correct answer is A
A system is in neutral equilibrium if its equilibrium is independent of displacements from its original position. A marble S on a flat horizontal surface is an example.
The process whereby a liquid turns spontaneously into vapour is called? ...
Which of the following factors does not increase the rate of evaporation of water in a lake? ...
The image of any real object formed by a diverging lens is always ...
The main function of the mouth of a telephone is to convert sound energy into ...
In which of the following media is the speed of sound the least? ...
Convex mirrors are used as driving mirrors because images formed are ...