Physics
A white and smooth surface is

Good absorber and good reflector of heat
Bad absorber and bad reflector of heat
Bad absorber and good reflector of heat
Good absorber and bad reflector of heat

ANSWER DOWNLOAD EXAMIANS APP

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 kinetic energies of all gas molecules are not same
The speed of all gas molecules is same

ANSWER DOWNLOAD EXAMIANS APP

Physics
Scalar Quantities are

Physical quantities which have no magnitude only and only direction
Physical quantities which have no magnitude and no direction
Physical quantities which have magnitude only and direction
Physical quantities which have magnitude only and no direction

ANSWER DOWNLOAD EXAMIANS APP