Physics In a refrigerator what produces the cooling ? The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer ANSWER DOWNLOAD EXAMIANS APP
Physics The wall of a dam is broader at the base Because streamlining is required To withstand pressure that increases with depth To withstand pressure that increases in a horizontal plane To withstand pressure that is increased with atmospheric pressure Because streamlining is required To withstand pressure that increases with depth To withstand pressure that increases in a horizontal plane To withstand pressure that is increased with atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Physics When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : Evaporation Vaporisation Sublimation Diffusion Evaporation Vaporisation Sublimation Diffusion ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon dating technique is used to estimate the age of fossils monuments rocks soil fossils monuments rocks soil ANSWER DOWNLOAD EXAMIANS APP
Physics What is the force of attraction between any two bodies by virtue of their masses is called? Electromagnetic Force Gravitational Force Centripetal Force Nuclear Force Electromagnetic Force Gravitational Force Centripetal Force Nuclear Force ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS