Physics If a copper wire is increased to double its length, its resistance will become Four times One–fourth Half Double Four times One–fourth Half Double ANSWER DOWNLOAD EXAMIANS APP
Physics Unit of impedance is ________ Henry Hertz Ohm Tesla Henry Hertz Ohm Tesla ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature (in degree Celsius), the numerical values on Celsius and Fahrenheit scales become equal? –40 273 –273 40 –40 273 –273 40 ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They use less oxygen They fly inactively Their lungs are very large They have extra air sacs They use less oxygen They fly inactively Their lungs are very large They have extra air sacs ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Exosphere Ionosphere Stratosphere Mesosphere Exosphere Ionosphere Stratosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Physics When a steel ball is placed on the surface of mercury, it does not sink because Of the surface tension of mercury Mercury is a semisolid Of the high viscosity of mercury The density of mercury is greater than that of steel Of the surface tension of mercury Mercury is a semisolid Of the high viscosity of mercury The density of mercury is greater than that of steel ANSWER DOWNLOAD EXAMIANS APP
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