Physics Sound travels at the fastest speed in vacuum air steel water vacuum air steel water ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because 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 conductor 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 conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Decreases and then remains constant Decreases Remains constant Increases Decreases and then remains constant Decreases Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Mud houses are cooler in summers and warmer in winters as compared to brick houses because Mud is a bad conductor Mud is a good conductor Mud is a poor insulator Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters Mud is a bad conductor Mud is a good conductor Mud is a poor insulator Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters ANSWER DOWNLOAD EXAMIANS APP
Physics Which one among the following is not an electromagnetic wave? X-Ray Infrared Ray Cathode Ray R-Ray X-Ray Infrared Ray Cathode Ray R-Ray ANSWER DOWNLOAD EXAMIANS APP
Physics The term ''equinox' means When the day and night are of equal duration The axis of the Earth around which it rotates The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The path which the Earthtakes around the Sun When the day and night are of equal duration The axis of the Earth around which it rotates The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The path which the Earthtakes around the Sun ANSWER DOWNLOAD EXAMIANS APP
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