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 Why does the sea appear blue in colour? Interference of the sun light from water surface Reflection of the sun light from water surface Scattering of the sunlight by water molecules Refraction of the sun light Interference of the sun light from water surface Reflection of the sun light from water surface Scattering of the sunlight by water molecules Refraction of the sun light ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Ultra high frequency waves on it Light waves on it Microwaves on it Radio waves on it Ultra high frequency waves on it Light waves on it Microwaves on it Radio waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Fossil fuel Wind energy Nuclear power Biofuel Fossil fuel Wind energy Nuclear power Biofuel ANSWER DOWNLOAD EXAMIANS APP
Physics In superconductors, the energy gap is due to Electron-phonon interaction Phonon-phonon interaction Electron-photon intercation Electron-electron interaction Electron-phonon interaction Phonon-phonon interaction Electron-photon intercation Electron-electron interaction ANSWER DOWNLOAD EXAMIANS APP
Physics A nuclear reactor is said to have become 'critical' when It starts emitting dangerous radioactive radiations It stops due to malfunctioning It is shut down to avoid explosion It is ready to produce controlled energy It starts emitting dangerous radioactive radiations It stops due to malfunctioning It is shut down to avoid explosion It is ready to produce controlled energy ANSWER DOWNLOAD EXAMIANS APP
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