Physics
Which physical quantity is measured in 'siemens'?

Electrical conductance
Electric potential
Refractive index
Magnetic flux

ANSWER DOWNLOAD EXAMIANS APP

Physics
Inside an aeroplane, flying at a high altitude,

normal humidity and partial vacuum are maintained.
the pressure is the same as that outside.
normal atmospheric pressure is maintained by the use of air pumps.
the pressure inside is less than the pressure outside.

ANSWER DOWNLOAD EXAMIANS APP

Physics
Energy in reflected light :

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

ANSWER DOWNLOAD EXAMIANS APP