Physics In a bipolar junction transistor 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 All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The emitter has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Becomes 1/4 th Is also doubled Become 4 times Becomes half Becomes 1/4 th Is also doubled Become 4 times Becomes half ANSWER DOWNLOAD EXAMIANS APP
Physics Water is used in car radiator because of its Low density Low boiling point High specific heat capacity Easy availability Low density Low boiling point High specific heat capacity Easy availability ANSWER DOWNLOAD EXAMIANS APP
Physics Lens is made up of Flint glass Ordinary glass Pyrex glass Cobalt glass Flint glass Ordinary glass Pyrex glass Cobalt glass ANSWER DOWNLOAD EXAMIANS APP
Physics Which phenomenon is responsible for the echo of sound wave? Reflection Refraction Interference Polarisation Reflection Refraction Interference Polarisation ANSWER DOWNLOAD EXAMIANS APP
Physics In sunlight a rose appears red. In green light, the same rose appears Black Yellow Red Green Black Yellow Red Green ANSWER DOWNLOAD EXAMIANS APP
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