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