Physics Acceptable noise level for human ear > 85 db None of these = 85 db < 85 db > 85 db None of these = 85 db < 85 db ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning heats the surrounding air to 30000 deg Cent 3000 deg Cent 300 deg Cent 300000 deg Cent 30000 deg Cent 3000 deg Cent 300 deg Cent 300000 deg Cent ANSWER DOWNLOAD EXAMIANS APP
Physics Bubbles of air rise up through liquids due to Viscosity and buoyancy Air current over the liquid and buoyancy Up thrust and surface tension Surface tension and adherence Viscosity and buoyancy Air current over the liquid and buoyancy Up thrust and surface tension Surface tension and adherence ANSWER DOWNLOAD EXAMIANS APP
Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: cohesion of mercury is greater than its adhesion with glass. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. mercury is a metal. cohesion of mercury is greater than its adhesion with glass. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. mercury is a metal. ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it 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
Physics The lift of an aeroplane is caused by Theorem of continuity Bernouli's theorem Law of gravitation Pascel's law Theorem of continuity Bernouli's theorem Law of gravitation Pascel's law ANSWER DOWNLOAD EXAMIANS APP
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