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 height Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Air pressure decreases with decrease in height 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 absolute refractive index of any medium is always: Less than one 1 More than one Less than one 1 More than one ANSWER DOWNLOAD EXAMIANS APP
Physics If the spinning speed of the earth is increased then the weight of body at the equator Same Decreases Double Increases Same Decreases Double Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Ozone layer above the surface of Earth provides a shield against Infra-red rays X-rays Ultra-violet rays Gamma rays Infra-red rays X-rays Ultra-violet rays Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which combination of colour is the most convenient during day and night time ? Yellow and blue Organe and blue Red and green White and black Yellow and blue Organe and blue Red and green White and black ANSWER DOWNLOAD EXAMIANS APP
Physics The force that generates wind is Gravity force Pressure gradient force Coriolis force Centrifugal force Gravity force Pressure gradient force Coriolis force Centrifugal force ANSWER DOWNLOAD EXAMIANS APP
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