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

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
The speed of all gas molecules is same

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Physics
Energy in reflected light :

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

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