Physics
Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

depressed
will not rise
will overflow
change its meniscus

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Physics
It is easier to roll a stone up a sloping road than to lift it vertical upwards because

Work done in rolling is more than in lifting.
Work done in both is same but the rate of doing work is less in rolling.
Work done in lifting the stone is equal to rolling it.
Work done in rolling a stone is less than in lifting it.

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Physics
Negative feedback in amplifiers

Decreases bandwidth and increases noise
Increases bandwidth and decreases noise
Decreases bandwidth and decreases noise
Increases bandwidth and increases noise

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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

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

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