Physics
For an ideal gas, which one of the following statements does not hold true?

The speed of all gas molecules is same
The kinetic energies of all gas molecules are not same
There is no interactive force between the molecules.
The potential energy of the gas molecules is zero

ANSWER DOWNLOAD EXAMIANS APP

Physics
What is the principle of a ''Life Jacket"?

It provides oxygen to a drowning person
The person can sit on it like a raft
It increases the volume of the person to keep him afloat
It decreases the volume of the person to keep him afloat

ANSWER DOWNLOAD EXAMIANS APP