Physics
Radiocarbon is produced in the atmosphere as a result of

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.
Action of ultraviolet light from the sun on atmospheric oxygen.
Lightning discharge in atmosphere.

ANSWER DOWNLOAD EXAMIANS APP

Physics
Negative feedback in amplifiers

Increases bandwidth and decreases noise
Decreases bandwidth and decreases noise
Increases bandwidth and increases noise
Decreases bandwidth and increases noise

ANSWER DOWNLOAD EXAMIANS APP