Physics In a Carnot engine when heat is taken from the source, its temperature Decreases and then remains constant Increases Decreases Remains constant Decreases and then remains constant Increases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics The least penetrating power ray is Gamma rays Alpha rays None of these Beta rays Gamma rays Alpha rays None of these Beta rays ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of stone is immersed in water, it displaces water of equal Mass Density Specific gravity Volume Mass Density Specific gravity Volume ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Rectifier Induction coil Transformer Dynamo Rectifier Induction coil Transformer Dynamo ANSWER DOWNLOAD EXAMIANS APP
Physics The GPS device in an automobile uses which communication channel? Radio frequency Infrared Microwave Satellite Radio frequency Infrared Microwave Satellite ANSWER DOWNLOAD EXAMIANS APP
Physics A car parked in the sun with its windows closed gets terribly hot inside. This is due to The good conducting power of the metal body The heat emitted by the engine The double layered wind shield The greenhouse effect The good conducting power of the metal body The heat emitted by the engine The double layered wind shield The greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
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