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A capillary tube is dipped into water. The water rises in the tube due to which

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Question: A capillary tube is dipped into water. The water rises in the tube due to which of the following?

Options:

  1. Surface tension and adhesion
  2. Surface tension and cohesion
  3. Only adhesion
  4. Only cohesion

Correct Answer: Surface tension and adhesion

Solution: 

The rise of water in a capillary tube is due to both surface tension (which pulls the liquid up) and adhesion (the attraction between water molecules and the tube\'s surface).

A capillary tube is dipped into water. The water rises in the tube due to which

Practice Questions

Q1
A capillary tube is dipped into water. The water rises in the tube due to which of the following?
  1. Surface tension and adhesion
  2. Surface tension and cohesion
  3. Only adhesion
  4. Only cohesion

Questions & Step-by-Step Solutions

A capillary tube is dipped into water. The water rises in the tube due to which of the following?
Correct Answer: Surface tension and adhesion
  • Step 1: Understand what a capillary tube is. It is a very thin tube that can hold liquids.
  • Step 2: Know that when the capillary tube is dipped into water, the water tries to climb up inside the tube.
  • Step 3: Learn about surface tension. This is a force that makes the surface of the water act like a stretched elastic sheet, helping to pull the water up.
  • Step 4: Understand adhesion. This is the attraction between the water molecules and the material of the tube, which helps the water stick to the sides of the tube.
  • Step 5: Realize that both surface tension and adhesion work together to make the water rise in the capillary tube.
  • Capillarity – The phenomenon where liquid rises or falls in a narrow space due to surface tension and adhesion.
  • Surface Tension – The cohesive force at the surface of a liquid that causes it to behave like a stretched elastic membrane.
  • Adhesion – The attraction between different substances, such as water molecules and the material of the capillary tube.
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