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FAQs on DC Pandey Solutions: Fluid Mechanics- 1 - DC Pandey Solutions for NEET Physics

1. What is fluid mechanics?
Ans. Fluid mechanics is the branch of physics that deals with the study of fluids, both liquids and gases, and the forces acting on them. It involves the study of how fluids behave under various conditions, such as when they are at rest or in motion, and the principles governing their flow.
2. What are the applications of fluid mechanics?
Ans. Fluid mechanics has various practical applications in everyday life and several industries. Some of the common applications include the design of water supply systems, the study of blood flow in the human body, the design and analysis of aircraft and automobiles, the understanding of weather patterns, and the development of pumps, turbines, and other fluid machinery.
3. What are the different types of fluid flow?
Ans. There are three main types of fluid flow: laminar flow, turbulent flow, and transitional flow. Laminar flow occurs when the fluid flows smoothly in parallel layers with minimal mixing. Turbulent flow, on the other hand, is characterized by chaotic and unpredictable motion with significant mixing. Transitional flow is a combination of laminar and turbulent flow, occurring when the flow changes from laminar to turbulent or vice versa.
4. What is Bernoulli's principle?
Ans. Bernoulli's principle states that as the speed of a fluid increases, its pressure decreases, and vice versa, assuming the flow is steady and the fluid is incompressible. This principle is based on the conservation of energy and is often used to explain phenomena such as lift in aerodynamics and the flow of fluids through pipes and nozzles.
5. How is viscosity related to fluid mechanics?
Ans. Viscosity is a property of fluids that measures their resistance to flow. In fluid mechanics, viscosity plays a crucial role in determining the behavior of fluids. It affects the rate of flow, the pressure drop in pipes, and the forces experienced by objects moving through fluids. Fluids with high viscosity, such as honey, flow slowly and offer more resistance, while fluids with low viscosity, such as water, flow more easily.
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