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 cheaper than iron Copper is a better conductor of electricity than iron Copper is lighter than iron Copper can take higher power than iron Copper is cheaper than iron Copper is a better conductor of electricity than iron ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following waves is used for communication by artificial satellites ? M. Frequency of 1016 series Micro waves Radio waves M. Frequency of 1016 series Micro waves Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric air is held to the Earth by : Rotation of the Earth Gravity Clouds Winds Rotation of the Earth Gravity Clouds Winds ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature at which water boils depends mainly on Relative humidity Air Pressure Specific heat Density Relative humidity Air Pressure Specific heat Density ANSWER DOWNLOAD EXAMIANS APP
Physics Fibre optics work on the principle of Total internal reflection Optical rotation Total internal absorption Scattering of light Total internal reflection Optical rotation Total internal absorption Scattering of light ANSWER DOWNLOAD EXAMIANS APP
Physics A person can jump higher on the moon's surface than on the earth because : The moon is cooler than earth The moon's surface is rough The moon has no atmosphere The acceleration due to gravity in moon is smaller than that on the earth. The moon is cooler than earth The moon's surface is rough The moon has no atmosphere The acceleration due to gravity in moon is smaller than that on the earth. ANSWER DOWNLOAD EXAMIANS APP
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