Physics Railway tracks are banked on curves to avoid frictional force between the tracks and wheels necessary centrifugal force may be obtained from the horizontal component weight of the train necessary centripetal force may be obtained from the horizontal component of the weight of the train the train may not fly off in the opposite direction to avoid frictional force between the tracks and wheels necessary centrifugal force may be obtained from the horizontal component weight of the train necessary centripetal force may be obtained from the horizontal component of the weight of the train the train may not fly off in the opposite direction ANSWER DOWNLOAD EXAMIANS APP
Physics The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall Increases with depth of the wall Depends on the thickness of the wall Depends on the area of the wall Increases with height of the wall Increases with depth of the wall Depends on the thickness of the wall Depends on the area of the wall Increases with height of the wall ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is Made up of slabs of different refractive indices Homogeneous and transparent Of variable refractive index Inhomogeneous and transparent Made up of slabs of different refractive indices Homogeneous and transparent Of variable refractive index Inhomogeneous and transparent ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Is also doubled Becomes 1/4 th Becomes half Become 4 times Is also doubled Becomes 1/4 th Becomes half Become 4 times ANSWER DOWNLOAD EXAMIANS APP
Physics Temperature of distant luminous bodies can be determined by Mercury thermometers Gas thermometers Colour thermometers Pyrometers Mercury thermometers Gas thermometers Colour thermometers Pyrometers ANSWER DOWNLOAD EXAMIANS APP
Physics Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as Joule effect Peltier effect Seebeck effect Thomson effect Joule effect Peltier effect Seebeck effect Thomson effect ANSWER DOWNLOAD EXAMIANS APP
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