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