Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Nail is more longer than needle. Gas is reactive with the needle. Nail exerts more pressure than needle on the balloon. Needle exerts more pressure than nail on the balloon. Nail is more longer than needle. Gas is reactive with the needle. Nail exerts more pressure than needle on the balloon. Needle exerts more pressure than nail on the balloon. 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 It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because Weights of buckets are balanced Centre of gravity falls within the body Resultant weight of buckets is zero Centre of gravity and centre of equilibrium fall within the feet Weights of buckets are balanced Centre of gravity falls within the body Resultant weight of buckets is zero Centre of gravity and centre of equilibrium fall within the feet ANSWER DOWNLOAD EXAMIANS APP
Physics In which form is the supplied heat energy stored during change in temperature of substance? Potential energy Heat energy Kinetic energy Both kinetic and potential energy Potential energy Heat energy Kinetic energy Both kinetic and potential energy ANSWER DOWNLOAD EXAMIANS APP
Physics In which one of the following the phenomenon of total internal reflection of light is used ? Formation of mirage Twinkling of stars Working of binoculars Formation of rainbow Formation of mirage Twinkling of stars Working of binoculars Formation of rainbow ANSWER DOWNLOAD EXAMIANS APP
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