Physics Positive feedback is used in None of these Oscillators Amplifiers Rectifiers None of these Oscillators Amplifiers Rectifiers ANSWER DOWNLOAD EXAMIANS APP
Physics The reflector of a search light is a : Convex mirror Plane mirror Concave mirror Cylindrical mirror Convex mirror Plane mirror Concave mirror Cylindrical mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Megahertz is a measurement of Capacity Speed Wavelength Frequency Capacity Speed Wavelength Frequency ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon is produced in the atmosphere as a result of Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Lightning discharge in atmosphere. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Lightning discharge in atmosphere. ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are those elements Whose resistance falls almost to zero at very low temperatures Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Whose resistance falls almost to zero at very low temperatures Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : With the speed of light In a straight line Heating the medium through which it passes In all directions With the speed of light In a straight line Heating the medium through which it passes In all directions ANSWER DOWNLOAD EXAMIANS APP
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