🔴 Angle of Contact || Surface Tension || for Class 11 in HINDI

In this Physics video of Surface Tension in Hindi for class 11 we explained angle of contact in surface tension. The angle subtended by the tangent on the surface of a liquid drop on a solid surface from the point of contact is called the angle of contact. When the solid attracts the liquid molecules, the angle becomes obtuse, and when repulsion is there, the angle becomes acute. It is all due to surface energy for the interface.
Previous videos -
🔴 Introduction to 'Mechanical Properties of Fluids' for Class 11
• 🔴 Mechanical Propertie...
🔴 Fluid Pressure
• 🔴 FLUID - 2 || Fluid P...
🔴 Pascal's Law (Part 1)
• 🔴 Pascal's Law (Part 1...
🔴 Pascal's Law (Part 2)
• 🔴 Pascal's Law (Part 2...
🔴 Hydrostatic Paradox
• 🔴 Hydrostatic Paradox ...
🔴 Mercury Barometer
• 🔴 Mercury Barometer ||...
🔴 U-Tube Manometer
• 🔴 U-Tube Manometer || ...
🔴 Archimedes' Principle
• ARCHIMEDES' PRINCIPLE ...
🔴 Streamline flow and Turbulent flow
• 🔴 Streamline Flow and ...
🔴 Equation of Continuity
• 🔴 Equation of Continui...
🔴 Bernoulli's Theorem
• 🔴 Bernoulli's Theorem ...
🔴 Torricelli's Law
• 🔴 Torricelli's Law || ...
🔴 Venturi Meter || Measuring the Speed of Fluid
• 🔴 VENTURI METER || Mea...
🔴 MAGNUS EFFECT and DYNAMIC LIFT
• 🔴 MAGNUS EFFECT and DY...
🔴 VISCOSITY
• 🔴 VISCOSITY || for Cla...
🔴 Stokes' Law
• 🔴 Stokes' Law || for C...
🔴 Terminal Velocity
• 🔴 Terminal Velocity ||...
🔴 Reynolds Number
• 🔴 Reynolds Number || f...
🔴 Surface Tension
• 🔴 Surface Tension || f...
🔴 Surface Energy
• 🔴 SURFACE ENERGY and S...
🔴 कांच में पानी क्यों चिपकता है ? जबकि पत्तो में नहीं चिपकता || Interfacial Tension || Surface Tension
• कांच में पानी क्यों चि...
🔴 Measuring Surface Tension
• 🔴 Measuring Surface Te...
🔴 Click here to watch the whole playlist on 'Mechanical Properties of Fluids' for Class 11 :
• 🔴 Mechanical Propertie...

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I don't understand why 'Sls' is acting towards the right. The cohesive forces of the liquid causes the water to pull closer together and the adhesive forces between the liquid and solid cause the liquid to spread out. So both the forces are acting. Why Should 'Sls' necessarily act towards the right?

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Jab bulk ke molecule ko isolate karne ke liye jayada energy chahiye to fir surface par energy jayada kyun hoti hai?

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What is the contact of angle of ethanol without water??????

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Pressure and force

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