Physics A black body can absorb radiations of : Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only ANSWER DOWNLOAD EXAMIANS APP
Physics A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that The rubber ball suffers greater change in momentum The metal ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball Both suffer the same change in momentum The rubber ball suffers greater change in momentum The metal ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball Both suffer the same change in momentum ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Pascal's law Conservation of mass principle Boyle's law Archimedes principle Pascal's law Conservation of mass principle Boyle's law Archimedes principle ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? J.J Thomson Marie Curie W.C Roentgen James Chadwick J.J Thomson Marie Curie W.C Roentgen James Chadwick ANSWER DOWNLOAD EXAMIANS APP
Physics Full form of CFL used in place of electric bulbs is Compact fluorescent lamp Closed fluorescent lamp Closed filament lamp Constantan filament lamp Compact fluorescent lamp Closed fluorescent lamp Closed filament lamp Constantan filament lamp ANSWER DOWNLOAD EXAMIANS APP
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