Physics Which of the following principle is used to produce ''low-temperatures' ? Super conductivity Thermo-electric effect Joule-Kelvin effect Adiabatic demagnetisation Super conductivity Thermo-electric effect Joule-Kelvin effect Adiabatic demagnetisation ANSWER DOWNLOAD EXAMIANS APP
Physics The first law of thermodynamics is simply the case of The law of conservation of energy Charle's law Newton's law of cooling The law of heat exchange The law of conservation of energy Charle's law Newton's law of cooling The law of heat exchange ANSWER DOWNLOAD EXAMIANS APP
Physics The commonly used coolant in refrigerators is Ammonia Oxygen Freon Nitrogen Ammonia Oxygen Freon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : Becomes maximum for angle of incidence equal to 45° Does not depends on the angle of incidence Decreases with the increase in angle of incidence Increases with the increase in angle Becomes maximum for angle of incidence equal to 45° Does not depends on the angle of incidence Decreases with the increase in angle of incidence Increases with the increase in angle ANSWER DOWNLOAD EXAMIANS APP
Physics Conservation of energy refers to the fact that Energy cannot be created or destroyed but can be converted from one form to another No chemical reaction is 100 percent efficient If you conserve energy you will not be as tired The entropy of the universe is always increasing Energy cannot be created or destroyed but can be converted from one form to another No chemical reaction is 100 percent efficient If you conserve energy you will not be as tired The entropy of the universe is always increasing ANSWER DOWNLOAD EXAMIANS APP
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