Physics Water cannot be used to extinguish fire caused by electric current, because It may cause electrolysis It may cause electrocution It may cause hydrolysis It may spoil the wiring It may cause electrolysis It may cause electrocution It may cause hydrolysis It may spoil the wiring ANSWER DOWNLOAD EXAMIANS APP
Physics Steel is more elastic than rubber because it : Is harder than rubber Is deformed very easily Is never deformed Requires larger deforming force Is harder than rubber Is deformed very easily Is never deformed Requires larger deforming force 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 Greater than the weight of the man Less than the weight of the man Same as the weight of the man Zero Greater than the weight of the man Less than the weight of the man Same as the weight of the man Zero ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals are good conductors of heat Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals are good conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron Copper is lighter than iron Copper can take higher power than iron Copper is a better conductor of electricity than iron Copper is cheaper than iron ANSWER DOWNLOAD EXAMIANS APP
Physics Small bubbles are perfectly spherical because of Viscosity Pressure Surface tension Gravity Viscosity Pressure Surface tension Gravity ANSWER DOWNLOAD EXAMIANS APP
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