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 Depends on the area of the wall Depends on the thickness of the wall Increases with height of the wall Increases with depth of the wall Depends on the area of the wall Depends on the thickness of the wall Increases with height of the wall Increases with depth of the wall ANSWER DOWNLOAD EXAMIANS APP
Physics If an object is thrown upwards, what will be its velocity, when it reaches its maximum height? 20 m/s 0 m/s 14.7 m/s 4.9 m/s 20 m/s 0 m/s 14.7 m/s 4.9 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics A transformer Is used to decrease or increase AC voltage Converts AC voltage to D.C. voltage Converts DC to AC Converts electrical energy into mechanical energy Is used to decrease or increase AC voltage Converts AC voltage to D.C. voltage Converts DC to AC Converts electrical energy into mechanical energy ANSWER DOWNLOAD EXAMIANS APP
Physics The reflector of a search light is a : Plane mirror Convex mirror Concave mirror Cylindrical mirror Plane mirror Convex mirror Concave mirror Cylindrical mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following metals is used for the manufacture of heating elements provided in electric iron ? Nickel Nichrome Chromium Tungsten Nickel Nichrome Chromium Tungsten ANSWER DOWNLOAD EXAMIANS APP
Physics Two rods, one of copper and other of steel, experience the same upthrust when placed in water.Thus, both have Equal volume Equal mass Equal density Equal weight Equal volume Equal mass Equal density Equal weight ANSWER DOWNLOAD EXAMIANS APP