Mechanical properties of Fluids 13. Viscosity . Velocity Gradient , Newton's law of viscosity  

This lecture contains explanation of viscosity in details . Also for coefficient of viscosity, Newtons law of viscosity is explained.
for previous lectures of fluid mechanics :
• Mechanical properties ... Introduction to hydro statics , pressure and fluids. #fluids
• Mechanical properties ... . Expression for pressure at depth & height of liquid surface .
• Mechanical properties ... Hydrostatic Paradox . Pascle's law in hydrostatics. #fluids
• Mechanical properties ... Hydraulic lift and hydraulic brakes. #fluids #ncert #mechanics
• Mechanical properties ... Mercury Borometer & open tube manometer. #fluids #ncert #mechanics
• Mechanical properties ... Surface tension. Forces. Molecular Theory #fluids #mechanics
• Mechanical properties ... Surface tension and relation between surface energy #fluids
• Mechanical properties ... Angle of contact . Explanation with experiment . #fluids #ncert
• Mechanical properties ... Expression for excess pressure inside liquid drop. Laplace law.
• Mechanical properties ... Capillary action Explanation: rise or fall of liquid in capillary
• Mechanical properties ... Expression for rise or fall of liquid in Capillary Action #ncert
• Mechanical properties ... Hydrodynamics. Streamline and turbulent flow. Reynolds number .