Physics Outside of cooking utensils are generally left black from below because It is difficult to clean daily. Black surface is a poor conductor of heat. Black surface is a good absorber of heat. Black surface is a good conductor of heat. It is difficult to clean daily. Black surface is a poor conductor of heat. Black surface is a good absorber of heat. Black surface is a good conductor of heat. ANSWER DOWNLOAD EXAMIANS APP
Physics In a bipolar junction transistor All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The emitter has the least concentration of impurity The collector 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 emitter has the least concentration of impurity The collector has the least concentration of impurity The base has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics An instrument that records earthquakes is Ediograph Seismograph Ergograph Thermograph Ediograph Seismograph Ergograph Thermograph ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer ANSWER DOWNLOAD EXAMIANS APP
Physics Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit X-rays visible light ultraviolet light radio waves X-rays visible light ultraviolet light radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics Which elements are malleable and good conductors of electricity? Iodine and xenon Iodine and silver Tin and xenon Tin and silver Iodine and xenon Iodine and silver Tin and xenon Tin and silver ANSWER DOWNLOAD EXAMIANS APP
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