Physics Why the needle of iron swims on water surface when it is kept gently ? Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape ANSWER DOWNLOAD EXAMIANS APP
Physics Increased wind speed is accompanied by a reduced air ________ Aridity Pressure Density Humidity Aridity Pressure Density Humidity ANSWER DOWNLOAD EXAMIANS APP
Physics Necessary element of change in solar energy to electrical energy Pure Copper Tantelum Silicon Berillium Pure Copper Tantelum Silicon Berillium ANSWER DOWNLOAD EXAMIANS APP
Physics The device which converts AC to DC is None of these Amplifier Rectifier Oscillator None of these Amplifier Rectifier Oscillator ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls In front of him Behind him By his side Into his hand In front of him Behind him By his side Into his hand 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 R/5 4 R/5 5 R/4 5 R R/5 4 R/5 5 R/4 ANSWER DOWNLOAD EXAMIANS APP
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