Physics In a bipolar junction transistor The collector has the least concentration of impurity The emitter has the least concentration of impurity The base has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The collector has the least concentration of impurity The emitter has the least concentration of impurity The base has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics The theory of relativity is presented by which scientist Albert Einstein Marie Curie Isaac Newton Stephen Hawking Albert Einstein Marie Curie Isaac Newton Stephen Hawking 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 Both suffer the same change in momentum The initial momentum of the rubber ball is greater than that of the metal ball The metal ball suffers greater change in momentum The rubber ball suffers greater change in momentum Both suffer the same change in momentum The initial momentum of the rubber ball is greater than that of the metal ball The metal ball suffers greater change in momentum ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for twinkling of stars ? Atmospheric reflection Dispersion of light Total internal reflection Atmospheric refraction Atmospheric reflection Dispersion of light Total internal reflection Atmospheric refraction ANSWER DOWNLOAD EXAMIANS APP
Physics When a bar magnet is cut into two equal halves, the pole strength of each piece – Becomes zero Remains the same Becomes half Becomes double Becomes zero Remains the same Becomes half Becomes double ANSWER DOWNLOAD EXAMIANS APP
Physics Hertz is the SI unit of Weight Power Pressure Frequency Weight Power Pressure Frequency ANSWER DOWNLOAD EXAMIANS APP
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