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 5R/4 R/2 3R/4 2R 5R/4 R/2 3R/4 2R ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following parts of the sunlight makes the solar cooker hot ? Cosmic rays Ultra violet Red light Infra red Cosmic rays Ultra violet Red light Infra red ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? W.C Roentgen J.J Thomson James Chadwick Marie Curie W.C Roentgen J.J Thomson James Chadwick Marie Curie ANSWER DOWNLOAD EXAMIANS APP
Physics Two stones of unequal masses are thrown vertically up with the same velocity. Which of the following will happen? Any of them may reach greater height The lighter mass will reach greater height Both will reach the same height The heavier mass will reach greater height Any of them may reach greater height The lighter mass will reach greater height Both will reach the same height The heavier mass will reach greater height ANSWER DOWNLOAD EXAMIANS APP
Physics The force which makes a vehicle to stop when break is applied is called Gravitational force Covalant force Vanderwalls force Frictional force Gravitational force Covalant force Vanderwalls force Frictional force ANSWER DOWNLOAD EXAMIANS APP
Physics An optically plane surface reflects a beam of light As a parallel beam in one direction As diffused beams in all directions As a diffused beam in one direction As parallel beams in all directions As a parallel beam in one direction As diffused beams in all directions As a diffused beam in one direction As parallel beams in all directions ANSWER DOWNLOAD EXAMIANS APP
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