Physics In a bipolar junction transistor 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 The collector has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Rain drops acquire spherical shape due to Surface tension Viscosity Friction Elasticity Surface tension Viscosity Friction Elasticity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following cannot be used for making lenses? Water Soil Plastic Glass Water Soil Plastic Glass ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following properties is found only in ferromagnetic materials ? Susceptibility independent of temperature Attracting a magnetic substance Hysteresis Point in a particular direction Susceptibility independent of temperature Attracting a magnetic substance Hysteresis Point in a particular direction ANSWER DOWNLOAD EXAMIANS APP
Physics Atmospheric pressure exerted on earth is due to Revolution of earth Gravitational pull Rotation of earth Uneven heating of earth Revolution of earth Gravitational pull Rotation of earth Uneven heating of earth ANSWER DOWNLOAD EXAMIANS APP
Physics On a rainy day, small oil films on water show brilliant colours. This is due to dispersion polarization diffraction interference dispersion polarization diffraction interference ANSWER DOWNLOAD EXAMIANS APP
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