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. 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. Lightning discharge in atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. ANSWER DOWNLOAD EXAMIANS APP
Physics The substance which conducts current in the solid state is Iodine Diamond Sodium chloride Graphite Iodine Diamond Sodium chloride Graphite ANSWER DOWNLOAD EXAMIANS APP
Physics When a detergent is added to pure water, its surface tension Decreases Increases Becomes infinite Remains constant Decreases Increases Becomes infinite Remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following circuit elements is used to ''block" DC in an electronic circuit ? Resistances Capacitance Inductance Diode Resistances Capacitance Inductance Diode ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The floor and carpet are at different temperatures The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The stone conveys the heat away from the feet more rapidly than the carpet ANSWER DOWNLOAD EXAMIANS APP
Physics A bullet of mass 10gm is fired with a velocity of 40 m/s from a gun of mass 8 kg. Find the recoil velocity (in m/s) of the gun. 4 2 0.05 0.1 4 2 0.05 0.1 ANSWER DOWNLOAD EXAMIANS APP
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