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A wire of length 10 cm is gently placed horizontally on the surface of water having a surface tension of 75×10-3 N m-1. What force is required to just pull up the wire from the water surface?

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Important Questions on Surface Tension

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2019>Q 4
Which one of the following statement is correct?
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2018>Q 5
A thin metal wire of density ρ floats on water surface horizontally. If it is NOT to sink in water then maximum radius of wire is proportional to ( T= surface tension of water, g= gravitational acceleration)
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2018>Q 6
The radius R of the soap bubble is doubled under isothermal condition. If T be the surface tension of the soap bubble, the work done in doing so is given by
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2017>Q 7
When one end of the capillary is dipped in water, the height of the water column is h. The upward force of 105 dyne due to surface tension is balanced by the force due to the weight of the water column. The inner circumference of the capillary is
(Surface tension of water =7×10-2 N m-1)
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2017>Q 8
A big water drop is formed by the combination of n small water drops of equal radii. The ratio of the surface energy of n drops to the surface energy of the big drop is
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2020 (13-Oct Shift 1)>Q 9
Water rises upto a height h in a capillary tube on the surface of the earth. The value of h increases, if the capillary tube apparatus is kept
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2020 (13-Oct Shift 1)>Q 10
Water rises to a height of 15 mm in a capillary tube having cross-sectional area A. If cross-sectional area of the tube is made A3 then the water will rise to a height of
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 10 - Surface Tension>MHT-CET 2018>Q 11
In a capillary tube having area of cross-section A, the water rises to a height h. If the cross-sectional area is reduced to A9, the rise of water in the capillary tube is