Physics Why does ice covered in sawdust not melt quickly ? The water is absorbed by sawdust Sawdust does not allow the air to touch the ice Sawdust is good conductor of heat Sawdust is a bad conductor of heat The water is absorbed by sawdust Sawdust does not allow the air to touch the ice Sawdust is good conductor of heat Sawdust is a bad conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes R/2 5R/4 3R/4 2R R/2 5R/4 3R/4 2R ANSWER DOWNLOAD EXAMIANS APP
Physics If an object is thrown upwards, what will be its velocity, when it reaches its maximum height? 20 m/s 0 m/s 14.7 m/s 4.9 m/s 20 m/s 0 m/s 14.7 m/s 4.9 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics In a diesel engine the high temperature needed to ignite the fuel is achieved by An electrical spark The battery Using heat from exhaust Compressing air in the cylinders An electrical spark The battery Using heat from exhaust Compressing air in the cylinders ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument used to see the distant objects on the Earth is Terrestrial telescope Astronomical telescope Compound microscope Simple microscope Terrestrial telescope Astronomical telescope Compound microscope Simple microscope ANSWER DOWNLOAD EXAMIANS APP
Physics A boat will submerge when it displaces water equal to its own: Weight Volume Density Surface area Weight Volume Density Surface area ANSWER DOWNLOAD EXAMIANS APP
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