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

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

ANSWER DOWNLOAD EXAMIANS APP

Physics
Energy in reflected light :

Does not depends on the angle of incidence
Increases with the increase in angle
Becomes maximum for angle of incidence equal to 45°
Decreases with the increase in angle of incidence

ANSWER DOWNLOAD EXAMIANS APP

Physics
Which of the following occurred first ?

Guglielmo Marconi sent out the first wireless signals
Wright Brothers successfully flew an aircraft
Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory

ANSWER DOWNLOAD EXAMIANS APP