Physics What is the principle of a ''Life Jacket"? The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Hysteresis loss alone The heating effect of current alone Intense sunlight at noon Both the heating effect of current and hysteresis loss Hysteresis loss alone The heating effect of current alone Intense sunlight at noon Both the heating effect of current and hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Physics In the absence of the earth's atmosphere, sky would appear White Deep red Blue Black White Deep red Blue Black ANSWER DOWNLOAD EXAMIANS APP
Physics Two stones of different masses are dropped simultaneously from the top of a building Both the stones reach the ground at the same time Depends on the composition of the stone Larger stone reaches the ground earlier Smaller stone reaches the ground earlier Both the stones reach the ground at the same time Depends on the composition of the stone Larger stone reaches the ground earlier Smaller stone reaches the ground earlier ANSWER DOWNLOAD EXAMIANS APP
Physics Which measurement describes the pressure of a gas? 315 K 251 g/cub.cm None of these 450 mm Hg 315 K 251 g/cub.cm None of these 450 mm Hg ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound is maximum in which among the following? Gases Vaccum Liquids Solids Gases Vaccum Liquids Solids ANSWER DOWNLOAD EXAMIANS APP
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