Physics In a bipolar junction transistor 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 The collector has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Solar energy is due to Fusion reactions Fission reactions Chemical reactions Combustion reactions Fusion reactions Fission reactions Chemical reactions Combustion reactions ANSWER DOWNLOAD EXAMIANS APP
Physics In case of uniform circular motion, the acceleration is Zero Variable in magnitude but tangential to the circle Variable in magnitude but constant in direction Constant in magnitude and directed radially inwards Zero Variable in magnitude but tangential to the circle Variable in magnitude but constant in direction Constant in magnitude and directed radially inwards ANSWER DOWNLOAD EXAMIANS APP
Physics The quality or tone of a musical sound produced by a stringed instrument depends on Frequency of vibration Length of the strings in the instrument Wave form of the sound Amplitude of vibration Frequency of vibration Length of the strings in the instrument Wave form of the sound Amplitude of vibration ANSWER DOWNLOAD EXAMIANS APP
Physics The boiling point of water depends upon the Mass Atmospheric pressure Density Volume Mass Atmospheric pressure Density Volume ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is produced when Clouds strike against impurities in air and the friction burns up these impurities Water vapour produces electricity in the clouds Similar charges of electricity rush towards each other and then get repelled Strong opposite charges in different clouds break down the resistance offered by the intervening air Clouds strike against impurities in air and the friction burns up these impurities Water vapour produces electricity in the clouds Similar charges of electricity rush towards each other and then get repelled Strong opposite charges in different clouds break down the resistance offered by the intervening air ANSWER DOWNLOAD EXAMIANS APP
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