Physics An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is 25 J 10 J 40 J 20 J 25 J 10 J 40 J 20 J ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? The speed of all gas molecules is same There is no interactive force between the molecules. The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same The speed of all gas molecules is same There is no interactive force between the molecules. The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same ANSWER DOWNLOAD EXAMIANS APP
Physics A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is Zero Same as the weight of the man Greater than the weight of the man Less than the weight of the man Zero Same as the weight of the man Greater than the weight of the man Less than the weight of the man ANSWER DOWNLOAD EXAMIANS APP
Physics The blue colour of water in the sea is due to Scattering of blue light by water molecules Reflection of blue sky by sea water Reflection of blue light by impurities in sea water Absorption of other colours except blue by water molecules Scattering of blue light by water molecules Reflection of blue sky by sea water Reflection of blue light by impurities in sea water Absorption of other colours except blue by water molecules ANSWER DOWNLOAD EXAMIANS APP
Physics Flywheel is an important part of a steam engine because it : Accelerates the speed of the engine Gives strength to the engine Helps the engine in keeping the speed uniform Decreases the moment of inertia Accelerates the speed of the engine Gives strength to the engine Helps the engine in keeping the speed uniform Decreases the moment of inertia ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a higher thermal conductivity than metals metals are good conductor of heat plastics have a lower density than metals metals have higher thermal capacity than plastics plastics have a higher thermal conductivity than metals metals are good conductor of heat plastics have a lower density than metals metals have higher thermal capacity than plastics ANSWER DOWNLOAD EXAMIANS APP