HSC board Previous Question
Chapter 2 Mechanical properties of fluid: 1. Define the term. Sphere of influence Angle of contact Surface film 2. Define angal contact.. State it's four characteristics. 3.Define surface tension. State it's S.I units and dimensions. 4. Draw a neat diagram for the rise of liquid in capillary tube showing the components of surface tension. 5. What is capillary? Give any two applications of capilarity. 6. What is surface energy? Obtain the relation between surface tension and surface energy. 7. Drive Laplace's law for spherical membrane of bubble due to surface tension. 8. Explain the phenomenon of surface tension on the basis of molecular theory. 9. State Stock's law and give two factors affecting angle of contact. 10. Compare streamline flow and Turbulent flow. 11. Calculate the rise of water inside a clean glass capillary tube of radius 0.1mm, when immersed in water of surface tention 7×10^-2 N/m. The angel of contact between water and glass is zero density of water...