Physics Radiocarbon is produced in the atmosphere as a result of Action of ultraviolet light from the sun on atmospheric oxygen. Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. ANSWER DOWNLOAD EXAMIANS APP
Physics What is the escape velocity of the rocket in the earth? 13.2 km/sec 12.2 km/sec 11.2 km/sec 10.2 km/sec 13.2 km/sec 12.2 km/sec 11.2 km/sec 10.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of electrical power is Ampere Watt Bolt Kilowatt hour Ampere Watt Bolt Kilowatt hour ANSWER DOWNLOAD EXAMIANS APP
Physics When the main switch of the house is put off it disconnects the Live wire only Live wire and the neutral wire Live wire and the earth wire Earth wire and the neutral wire Live wire only Live wire and the neutral wire Live wire and the earth wire Earth wire and the neutral wire ANSWER DOWNLOAD EXAMIANS APP
Physics When a strong beam of light is passed through a colloidal solution, the light will Pass unchanged Be reflected Be absorbed Be scattered Pass unchanged Be reflected Be absorbed Be scattered ANSWER DOWNLOAD EXAMIANS APP
Physics A car parked in the sun with its windows closed gets terribly hot inside. This is due to The greenhouse effect The double layered wind shield The heat emitted by the engine The good conducting power of the metal body The greenhouse effect The double layered wind shield The heat emitted by the engine The good conducting power of the metal body ANSWER DOWNLOAD EXAMIANS APP
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