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. Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the 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. Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. ANSWER DOWNLOAD EXAMIANS APP
Physics Anemometer is an instrument meant for measuring ________ Velocity Air masses Temperature Wind speed Velocity Air masses Temperature Wind speed ANSWER DOWNLOAD EXAMIANS APP
Physics If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used? Plane Cylindrical Concave Convex Plane Cylindrical Concave Convex ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Biofuel Wind energy Fossil fuel Nuclear power Biofuel Wind energy Fossil fuel Nuclear power ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Micro sound waves Infrasonic sound waves Supersonic sound waves Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves Ultrasonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics These waves cannot be transmitted through vacuum. Light Heat Sound Electromagnetic Light Heat Sound Electromagnetic ANSWER DOWNLOAD EXAMIANS APP
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