Physics
A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

Decreasing the radius of the capillary tube
None of these
Increasing the radius of the capillary tube
Increasing the height of water in the vessel

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Physics
The Hooke's law is valid for

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

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