Physics Which of the following represents a relation for ''heat lost = heat gained'? Principle of calorimetry Principle of colors Principle of thermal equilibrium Principle of vaporization Principle of calorimetry Principle of colors Principle of thermal equilibrium Principle of vaporization ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals ANSWER DOWNLOAD EXAMIANS APP
Physics A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point the rifle In the same direction as the bird Vertically upwards At the lower elevation than the bird At a higher elevation than the bird In the same direction as the bird Vertically upwards At the lower elevation than the bird At a higher elevation than the bird ANSWER DOWNLOAD EXAMIANS APP
Physics The energy obtained from atoms is known as ________ Heat energy Chemical energy Nuclear energy Solar energy Heat energy Chemical energy Nuclear energy Solar energy ANSWER DOWNLOAD EXAMIANS APP
Physics In an optical fibre the signal is transmitted Due to refraction In a straight line path In a curved path Due to total internal reflection Due to refraction In a straight line path In a curved path Due to total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Supersonic sound waves Infrasonic sound waves Micro sound waves Ultrasonic sound waves Supersonic sound waves Infrasonic sound waves Micro sound waves Ultrasonic sound waves ANSWER DOWNLOAD EXAMIANS APP
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