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?

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

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Physics
The Hooke's law is valid for

Entire elastic region of the stress strain curve
Entire stress strain curve
Only proportional region of the stress strain curve
Elastic as well as plastic region of the stress strain curve

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