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. 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. ANSWER DOWNLOAD EXAMIANS APP
Physics Quality of transmission depends upon Nature of medium only Neither A nor B Both (A) and (B) Nature of signal only Nature of medium only Neither A nor B Both (A) and (B) Nature of signal only ANSWER DOWNLOAD EXAMIANS APP
Physics Which physical quantity is measured in 'siemens'? Electrical conductance Refractive index Electric potential Magnetic flux Electrical conductance Refractive index Electric potential Magnetic flux ANSWER DOWNLOAD EXAMIANS APP
Physics Which colour has the highest frequency? Violet Red Indigo Green Violet Red Indigo Green ANSWER DOWNLOAD EXAMIANS APP
Physics Which colour is the complementary colour of yellow ? Orange Blue Red Green Orange Blue Red Green ANSWER DOWNLOAD EXAMIANS APP
Physics The ''four stroke petrol engine' is based on Carnot-cycle Boyle's-cycle Diesel-cycle Otto-cycle Carnot-cycle Boyle's-cycle Diesel-cycle Otto-cycle ANSWER DOWNLOAD EXAMIANS APP
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