Physics Which of the following laws validates the statement that matter can neither be created nor destroyed ? Law of conservation of energy Le Chatelier's Principle Law of conservation of mass Law of osmosis Law of conservation of energy Le Chatelier's Principle Law of conservation of mass Law of osmosis ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It has only one electron It is very small in size Its energy levels are very close to each other It is highly electropositive It has only one electron It is very small in size Its energy levels are very close to each other It is highly electropositive ANSWER DOWNLOAD EXAMIANS APP
Physics The bending of light when it passes around a corner or a slit is due to ________ Refraction Diffraction Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The device which converts sound energy into electrical energy is called Amplifier Microphone Speaker Transmitter Amplifier Microphone Speaker Transmitter ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Remains constant Increases Decreases Decreases and then remains constant Remains constant Increases Decreases Decreases and then remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is exhibiting kinetic energy? A space station orbiting Earth An archer with a flexed bow All of these A person sitting on a couch while watching TV A space station orbiting Earth An archer with a flexed bow All of these A person sitting on a couch while watching TV ANSWER DOWNLOAD EXAMIANS APP
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