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