Physics
It is difficult to cook rice

Under a mine
At the top of a mountain
Same anywhere
At the sea level

ANSWER DOWNLOAD EXAMIANS APP

Physics
Radiocarbon is produced in the atmosphere as a result of

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

ANSWER DOWNLOAD EXAMIANS APP

Physics
To resolve an object in an electron microscope,

None of these
The wavelength of the electrons must be close to the diameter of the object
The wavelength of the electrons must be greater than the diameter of the object.
Both A & B

ANSWER DOWNLOAD EXAMIANS APP