Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 10 cm 5 cm 15 cm 20 cm 10 cm 5 cm 15 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Physics When light passes from one medium to another, this phenomenon of change in its direction is called ________ No option is correct Diffraction Propagation Refraction No option is correct Diffraction Propagation Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The ice which deposits on the freezer None of these The sudden expansion of a compressed gas The evaporation of a volatile liquid The ice which deposits on the freezer None of these The sudden expansion of a compressed gas The evaporation of a volatile liquid ANSWER DOWNLOAD EXAMIANS APP
Physics If an electron and a photon have the same wavelength, then they will have the same Angular momentum Velocity Energy Linear momentum Angular momentum Velocity Energy Linear momentum ANSWER DOWNLOAD EXAMIANS APP
Physics In hydro power station, the motion produced in turbines is due to Production of steam Burning of diesel Flow of water Burning of coal Production of steam Burning of diesel Flow of water Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following laws validates the statement that matter can neither be created nor destroyed ? Law of conservation of mass Le Chatelier's Principle Law of osmosis Law of conservation of energy Law of conservation of mass Le Chatelier's Principle Law of osmosis Law of conservation of energy ANSWER DOWNLOAD EXAMIANS APP
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