Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes R/2 2R 3R/4 5R/4 R/2 2R 3R/4 5R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is Increased by 4% Decreased by 2% Increased by 2% Decreased by 4% Increased by 4% Decreased by 2% Increased by 2% Decreased by 4% ANSWER DOWNLOAD EXAMIANS APP
Physics Rectifiers are used to convert: Low voltage to high voltage Alternating current to Direct current High voltage to low voltage Direct current to Alternating current Low voltage to high voltage Alternating current to Direct current High voltage to low voltage Direct current to Alternating current ANSWER DOWNLOAD EXAMIANS APP
Physics The oil in the wick of an oil lamp rises up due to: Gravitational force Pressure difference Capillary action Low viscosity of oil Gravitational force Pressure difference Capillary action Low viscosity of oil 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 Law of osmosis 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 ANSWER DOWNLOAD EXAMIANS APP
Physics 1 amu is equivalent to 931 KeV 931 eV 1 eV 931 MeV 931 KeV 931 eV 1 eV 931 MeV ANSWER DOWNLOAD EXAMIANS APP
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