Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction, convection and radiation Conduction and radiation only Convection and radiation only Conduction and convection only Conduction, convection and radiation Conduction and radiation only Convection and radiation only Conduction and convection only ANSWER DOWNLOAD EXAMIANS APP
Physics Conversion of heat into electrical energy is achieved by using : Ammeter Thermocouple Voltmeter Hydrometer Ammeter Thermocouple Voltmeter Hydrometer ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a Non Renewable Resource of Energy? Hydrogen Fuel Wind Power Solar Energy Natural Gas Hydrogen Fuel Wind Power Solar Energy Natural Gas ANSWER DOWNLOAD EXAMIANS APP
Physics The earth is a Good absorber and good radiator of heat Bad absorber and bad radiator of heat Good reflector of heat Non-absorber of heat Good absorber and good radiator of heat Bad absorber and bad radiator of heat Good reflector of heat Non-absorber of heat ANSWER DOWNLOAD EXAMIANS APP
Physics When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is Dispersion of light Scattering of light Reflection of light Refraction of light Dispersion of light Scattering of light Reflection of light Refraction of light ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS