Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? Air layer between two shirts works as good conductor No radiation of heat takes place Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts behaves like insulating media Air layer between two shirts works as good conductor No radiation of heat takes place Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts behaves like insulating media 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 height Air pressure decreases with decrease in weight 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 height Air pressure decreases with decrease in weight ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument used to measure the force and velocity of the wind is Audiometer Altimeter Anemometer Ammeter Audiometer Altimeter Anemometer Ammeter ANSWER DOWNLOAD EXAMIANS APP
Physics Point A is at a lower electrical potential than point B. An electron between them on the line joining them will Move at right angles to the line joining A and B Move towards B Remain at rest Move towards A Move at right angles to the line joining A and B Move towards B Remain at rest Move towards A ANSWER DOWNLOAD EXAMIANS APP
Physics The force exerted on an object is 200 N and its mass is 100 kg. Find the acceleration of the object. 2 s 2 m 2 m/s 2 m/sq.s 2 s 2 m 2 m/s 2 m/sq.s ANSWER DOWNLOAD EXAMIANS APP
Physics Vehicle tyres are inflated properly To go fast and save fuel. To avoid skidding and to minimise friction To ensure smooth running. To allow the vehicle to take more load. To go fast and save fuel. To avoid skidding and to minimise friction To ensure smooth running. To allow the vehicle to take more load. ANSWER DOWNLOAD EXAMIANS APP
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