Physics The pressure of a fluid varies with depth h as P = PQ+pgh, where p is the fluid density. This expression is associated with Archimedes' principle Pascal's law Bernoulli's principle Newton's law Archimedes' principle Pascal's law Bernoulli's principle Newton's law ANSWER DOWNLOAD EXAMIANS APP
Physics In the case of bodies falling under gravity which of the following remains constant at a given place? Potential energy Kinetic energy All listed here Acceleration Potential energy Kinetic energy All listed here Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Less than weight of the wood Equal to the weight of the wood More than weight of the wood Zero Less than weight of the wood Equal to the weight of the wood More than weight of the wood Zero ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train 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 The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics Mercury is commonly used as a thermometric fluid rather than water because specific heat of mercury is less than water mercury has greater visibility than water density of mercury is more than the water specific heat of mercury is more than water specific heat of mercury is less than water mercury has greater visibility than water density of mercury is more than the water specific heat of mercury is more than water ANSWER DOWNLOAD EXAMIANS APP
Physics A wire of copper having length I and area of cross-section A is taken and a current i is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be 2P > P P < P 2P > P P < P ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS