Physics What is the escape velocity of the rocket in the earth? 12.2 km/sec 11.2 km/sec 13.2 km/sec 10.2 km/sec 12.2 km/sec 11.2 km/sec 13.2 km/sec 10.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. Work done in lifting the stone is equal to rolling it. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. Work done in lifting the stone is equal to rolling it. Work done in both is same but the rate of doing work is less in rolling. 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 weight Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in weight Air pressure decreases with decrease in height Weight of the balloon is less than the weight of air displaced by it. ANSWER DOWNLOAD EXAMIANS APP
Physics Thermal expansion of materials arises from Strong bonds Thermal vibrations Weak bonds Asymmetry of potential energy curve Strong bonds Thermal vibrations Weak bonds Asymmetry of potential energy curve ANSWER DOWNLOAD EXAMIANS APP
Physics The boiling point of water decreases at higher altitudes is due to Low atmospheric pressure Low temperature High temprature High atmospheric pressure Low atmospheric pressure Low temperature High temprature High atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that usually are good conductors of electricity? Lead Wood Nickel Aluminium Lead Wood Nickel Aluminium ANSWER DOWNLOAD EXAMIANS APP
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