Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Dielectrics Semi conductors Superconductors Perfect conductors Dielectrics Semi conductors Superconductors Perfect conductors 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 1000 0.016 0.008 2000 1000 0.016 0.008 2000 ANSWER DOWNLOAD EXAMIANS APP
Physics Fuse wire is made of an alloy of Copper and Silver Lead and Copper Tin and Lead Tin and Copper Copper and Silver Lead and Copper Tin and Lead Tin and Copper ANSWER DOWNLOAD EXAMIANS APP
Physics The flux commonly used in brazing is Ammonium chloride Zinc chloride Resin plus alcohol Borax Ammonium chloride Zinc chloride Resin plus alcohol Borax ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? Atomic clocks Quartz clocks White dwarfs Pulsars Atomic clocks Quartz clocks White dwarfs Pulsars ANSWER DOWNLOAD EXAMIANS APP
Physics The earth is a Bad absorber and bad radiator of heat Good absorber and good radiator of heat Non-absorber of heat Good reflector of heat Bad absorber and bad radiator of heat Good absorber and good radiator of heat Non-absorber of heat Good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS