Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals ANSWER DOWNLOAD EXAMIANS APP
Physics Ventilators are provided near the ceiling of the room because These provide some sunlight in the room These provide cross ventilation in the room The exhaled warmer air rises up and goes out These do not look nice in the lower part These provide some sunlight in the room These provide cross ventilation in the room The exhaled warmer air rises up and goes out These do not look nice in the lower part ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is caused due to Electric power Electric leak Electric pressure Electric discharge Electric power Electric leak Electric pressure Electric discharge ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon is produced in the atmosphere as a result of 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Physics Land is considered a resource because it Costs little or nothing to use Requires labor to be useful Is always available to use Is used to produce things Costs little or nothing to use Requires labor to be useful Is always available to use Is used to produce things ANSWER DOWNLOAD EXAMIANS APP
Physics When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: Double Remain same Four times Three times Double Remain same Four times Three times ANSWER DOWNLOAD EXAMIANS APP
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