Physics Superconductors are those elements Which conduct electricity only at super-high temperatures Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures Whose conductivity is intermediate between metals and insulators Which conduct electricity only at super-high temperatures Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures Whose conductivity is intermediate between metals and insulators ANSWER DOWNLOAD EXAMIANS APP
Physics In the process of magnetisation of a bar The entire bulk of the bar gets magnetised Only some parts of the outer layers of the bar get magnetised Only the surface of the bar gets magnetised Only the ends of the bar get magnetised The entire bulk of the bar gets magnetised Only some parts of the outer layers of the bar get magnetised Only the surface of the bar gets magnetised Only the ends of the bar get magnetised ANSWER DOWNLOAD EXAMIANS APP
Physics An aircraft can perform aerobatic manoeuvres in a vertical loop because of Gravity Centripetal force Centrifugal force Weight Gravity Centripetal force Centrifugal force Weight ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 0.008 1000 2000 0.016 0.008 1000 2000 0.016 ANSWER DOWNLOAD EXAMIANS APP
Physics Who is the first person to define speed Ptolemy Galileo Kepler Newton Ptolemy Galileo Kepler Newton ANSWER DOWNLOAD EXAMIANS APP
Physics Night photography and photopraphy in mist and fog are possible using Microwave radiation Ultra-violet radiation Infra-red radiation Gamma radiation Microwave radiation Ultra-violet radiation Infra-red radiation Gamma radiation ANSWER DOWNLOAD EXAMIANS APP
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