Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube H, what will happen to the liquid column in the capillary tube?

Level will rise above A

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Level will fall below A

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Level will remain at A

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It is difficult to predict

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Solution

The correct option is A
Level will rise above A

The air through the horizontal tube will decrease the pressure and more liquid will be pushed into the capillary tube.

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Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube H, what will happen to the liquid column in the capillary tube?

The correct option is A Level will rise above A The air through the horizontal tube will decrease the pressure and more liquid will be pushed into the capillary tube.

The correct option is A
Level will rise above A

The air through the horizontal tube will decrease the pressure and more liquid will be pushed into the capillary tube.