Podcast
Questions and Answers
What is the expression for capillary rise or fall?
What is the expression for capillary rise or fall?
- $r^2h$
- $r^2h\rho - 2T/R$
- $r^2hg$
- $rh - gT(2 \cos\theta)$ (correct)
What is the factor that must be equal and opposite to the vertical component of the force due to surface tension in capillary action?
What is the factor that must be equal and opposite to the vertical component of the force due to surface tension in capillary action?
- $w = r^2hg$
- $r^2hg$ (correct)
- $r^2h\rho$
- $r^2h$
In terms of capillary rise, what is the expression for surface tension?
In terms of capillary rise, what is the expression for surface tension?
- $r^2h$
- $rh - gT(2 \cos\theta)$
- $r^2h\rho - 2T/R$
- $rh - gT$ (correct)
How is the pressure affected at the concave side in capillarity?
How is the pressure affected at the concave side in capillarity?
What does the volume of liquid in the capillary rise depend on?
What does the volume of liquid in the capillary rise depend on?
What does the mass of liquid in the capillary rise depend on?
What does the mass of liquid in the capillary rise depend on?
What happens when a capillary is dipped in a liquid that does not wet the surface?
What happens when a capillary is dipped in a liquid that does not wet the surface?
In a capillary tube, where is Point B located?
In a capillary tube, where is Point B located?
What is observed when a capillary is dipped in water?
What is observed when a capillary is dipped in water?
Which term describes the upward movement of liquids in narrow tubes due to intermolecular forces?
Which term describes the upward movement of liquids in narrow tubes due to intermolecular forces?
In capillarity, what factor determines whether a liquid will rise or fall in a capillary tube?
In capillarity, what factor determines whether a liquid will rise or fall in a capillary tube?
Which of the following materials does NOT exhibit capillarity?
Which of the following materials does NOT exhibit capillarity?
What is the phenomenon called when the level of liquid in a capillary tube rises when the tube is dipped in a liquid that wets its surface?
What is the phenomenon called when the level of liquid in a capillary tube rises when the tube is dipped in a liquid that wets its surface?
In capillarity, why does the level of liquid in a capillary tube drop when it is dipped in a liquid that does not wet its surface?
In capillarity, why does the level of liquid in a capillary tube drop when it is dipped in a liquid that does not wet its surface?
What is the term used to describe a tube with a very fine bore and open at both ends, used in capillary action?
What is the term used to describe a tube with a very fine bore and open at both ends, used in capillary action?
Which of the following factors affects capillarity in a liquid?
Which of the following factors affects capillarity in a liquid?
In capillarity, what happens to the level of a liquid in a capillary tube when the liquid completely wets the surface of the capillary?
In capillarity, what happens to the level of a liquid in a capillary tube when the liquid completely wets the surface of the capillary?
What is the term for the rise or fall of a liquid inside a capillary tube when it is dipped in the liquid?
What is the term for the rise or fall of a liquid inside a capillary tube when it is dipped in the liquid?
