Physics
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

Bubbles remain distributed uniformly
Near the neck
Near the bottom
In the middle of the bottom

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Physics
In a bipolar junction transistor

The emitter has the least concentration of impurity
All the three regions (the emitter, the base and the collector) have equal concentrations of impurity
The base has the least concentration of impurity
The collector has the least concentration of impurity

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