Physics What is the principle of a ''Life Jacket"? It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person It increases the volume of the person to keep him afloat The person can sit on it like a raft It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person It increases the volume of the person to keep him afloat The person can sit on it like a raft ANSWER DOWNLOAD EXAMIANS APP
Physics The Hooke's law is valid for Elastic as well as plastic region of the stress strain curve Entire stress strain curve Entire elastic region of the stress strain curve Only proportional region of the stress strain curve Elastic as well as plastic region of the stress strain curve Entire stress strain curve Entire elastic region of the stress strain curve Only proportional region of the stress strain curve ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that The train may not fall down inwards Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centrifugal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics The cooling by a desert Cooler is based on: Evaporative Cooling Hot air replacement Air Rehydration Air dehydration Evaporative Cooling Hot air replacement Air Rehydration Air dehydration ANSWER DOWNLOAD EXAMIANS APP
Physics Bubbles of air rise up through liquids due to Up thrust and surface tension Air current over the liquid and buoyancy Surface tension and adherence Viscosity and buoyancy Up thrust and surface tension Air current over the liquid and buoyancy Surface tension and adherence Viscosity and buoyancy ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ . The centripetal force Illusion of the man Gravitational force between train and man Pressure difference due to fast moving air in between The centripetal force Illusion of the man Gravitational force between train and man Pressure difference due to fast moving air in between ANSWER DOWNLOAD EXAMIANS APP
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