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 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 ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature of a liquid is 32° F. What is its temperature in Celsius scale? 212° C 0° C 100° C 32° C 212° C 0° C 100° C 32° C ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R/4 R/5 4 R/5 5 R 5 R/4 R/5 4 R/5 5 R ANSWER DOWNLOAD EXAMIANS APP
Physics A fresh egg when placed in salt water will Burst Sink but will not go to the bottom Float Sink and go to the bottom Burst Sink but will not go to the bottom Float Sink and go to the bottom ANSWER DOWNLOAD EXAMIANS APP
Physics An athlete runs before long jump to get advantage on Frictional force Inertia of motion Moment of a force Principle of moments Frictional force Inertia of motion Moment of a force Principle of moments ANSWER DOWNLOAD EXAMIANS APP
Physics Golden view of sea shell is due to Polarization Reflection Dispersion Diffraction Polarization Reflection Dispersion Diffraction ANSWER DOWNLOAD EXAMIANS APP
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