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 3R/4 5R/4 2R R/2 3R/4 5R/4 2R ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the unit of perceived loudness of sound ? Phon Decibel Sone Hertz Phon Decibel Sone Hertz ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave the Theory of Relativity? Isaac Newton Archimedes Galileo Galilei Albert Einstein Isaac Newton Archimedes Galileo Galilei Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Physics What is the resistance (in ohm) of an electrical component if a current of 0.1 A passes through it on application of 5 V of potential difference across it? 100 50 0.5 1 100 50 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ? Venus Saturn Earth Moon Venus Saturn Earth Moon ANSWER DOWNLOAD EXAMIANS APP
Physics The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is Reflection Dispersion Interference Diffraction Reflection Dispersion Interference Diffraction ANSWER DOWNLOAD EXAMIANS APP
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