Physics
Velocity of sound in air does not change with the change of

Moisture content in air
Wind in the direction of propagation of sound
Pressure of air
Temperature of air

ANSWER DOWNLOAD EXAMIANS APP

Physics
In the process of magnetisation of a bar

Only the surface of the bar gets magnetised
Only the ends of the bar get magnetised
The entire bulk of the bar gets magnetised
Only some parts of the outer layers of the bar get magnetised

ANSWER DOWNLOAD EXAMIANS APP

Physics
Radiocarbon is produced in the atmosphere as a result of

Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
Action of ultraviolet light from the sun on atmospheric oxygen.
Lightning discharge in atmosphere.
Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere.

ANSWER DOWNLOAD EXAMIANS APP