Physics A small gap is left at the joints of rails in a railway track to Control the speed of train Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Keep the rails equidistant Control the speed of train Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Keep the rails equidistant ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves necessary centripetal force may be obtained from the horizontal component of the weight of the train necessary centrifugal force may be obtained from the horizontal component weight of the train the train may not fly off in the opposite direction to avoid frictional force between the tracks and wheels necessary centripetal force may be obtained from the horizontal component of the weight of the train necessary centrifugal force may be obtained from the horizontal component weight of the train the train may not fly off in the opposite direction to avoid frictional force between the tracks and wheels ANSWER DOWNLOAD EXAMIANS APP
Physics The time period of a seconds pendulum is 1.5 second 0.5 second 1 second 2 seconds 1.5 second 0.5 second 1 second 2 seconds ANSWER DOWNLOAD EXAMIANS APP
Physics A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? Both reach at the same time Depends on their masses Sphere Disk Both reach at the same time Depends on their masses Sphere Disk ANSWER DOWNLOAD EXAMIANS APP
Physics A person can jump higher on the moon's surface than on the earth because : The moon is cooler than earth The moon has no atmosphere The moon's surface is rough The acceleration due to gravity in moon is smaller than that on the earth. The moon is cooler than earth The moon has no atmosphere The moon's surface is rough The acceleration due to gravity in moon is smaller than that on the earth. ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of light is maximum in ________ Vacuum Gases Solids Liquids Vacuum Gases Solids Liquids ANSWER DOWNLOAD EXAMIANS APP
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