Physics Bubbles of air rise up through liquids due to Viscosity and buoyancy Air current over the liquid and buoyancy Surface tension and adherence Up thrust and surface tension Viscosity and buoyancy Air current over the liquid and buoyancy Surface tension and adherence Up thrust and surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Solar cells work on the principle of Photosynthesis Photoelectric effect Photovoltaic effect Photoconductive effect Photosynthesis Photoelectric effect Photovoltaic effect Photoconductive effect ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates ANSWER DOWNLOAD EXAMIANS APP
Physics If electric resistance is to be decreased, then the number of resistances should be connected in ________ Mixed arrangement Parallel None of these Series Mixed arrangement Parallel None of these Series ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of 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. 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 ANSWER DOWNLOAD EXAMIANS APP
Physics Infrasonic sound has a frequency lower than 20 Hz 5 Hz 32 Hz 15 Hz 20 Hz 5 Hz 32 Hz 15 Hz ANSWER DOWNLOAD EXAMIANS APP
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