Physics A hydrogen balloon floats up because of Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in height Air pressure decreases with decrease in weight 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 height Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it ANSWER DOWNLOAD EXAMIANS APP
Physics Materials for rain-proof coats and tents owe their water-proof properties to elasticity viscosity specific gravity surface tension elasticity viscosity specific gravity surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Hot springs are heated geothermally by underlying None of these Magma Mitula Water None of these Magma Mitula Water ANSWER DOWNLOAD EXAMIANS APP
Physics The motion of a body around a circular path is an example of Uniform speed, variable velocity Uniform speed, uniform velocity Uniform velocity, variable acceleration Uniform speed, variable acceleration Uniform speed, variable velocity Uniform speed, uniform velocity Uniform velocity, variable acceleration Uniform speed, variable acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following determines the pitch of a sound? Amplitude Wavelength Loudness Frequency Amplitude Wavelength Loudness Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics An ice block with a piece of lead embeded in it floats in water. If ice melts the water level Remains same Falls Rises Falls first and then rises Remains same Falls Rises Falls first and then rises ANSWER DOWNLOAD EXAMIANS APP
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