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

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

ANSWER DOWNLOAD EXAMIANS APP

Physics
Rainbows are produced when sunlight :

Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection.
Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection.
None of the given statements is correct.
Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction

ANSWER DOWNLOAD EXAMIANS APP

Physics
Superconductors are those elements

Which turn into insulators at very low temperatures
Whose conductivity is intermediate between metals and insulators
Whose resistance falls almost to zero at very low temperatures
Which conduct electricity only at super-high temperatures

ANSWER DOWNLOAD EXAMIANS APP