Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2) 100 J 0 J 400 J 200 J 100 J 0 J 400 J 200 J ANSWER DOWNLOAD EXAMIANS APP
Physics Time of exposure required for taking photograph of an object depends upon the Brightness of the object Size of the object Skill of photographer Proximity of object Brightness of the object Size of the object Skill of photographer Proximity of object ANSWER DOWNLOAD EXAMIANS APP
Physics If lift is going up with acceleration, the apparent weight of a body is Less than the true weight May be more or less than true weight More than the true weight Equal to the true weight Less than the true weight May be more or less than true weight More than the true weight Equal to the true weight ANSWER DOWNLOAD EXAMIANS APP
Physics Stars in the sky appear to twinkle due to Multiple diminishing brightness A series of reflections A surface tension phenomenon A series of refractions Multiple diminishing brightness A series of reflections A surface tension phenomenon A series of refractions ANSWER DOWNLOAD EXAMIANS APP
Physics Modem is used mostly for ? A modern empty memory modules Mostly for file system Connecting to internet All listed here A modern empty memory modules Mostly for file system Connecting to internet All listed here ANSWER DOWNLOAD EXAMIANS APP
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