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Dimensional formula: $\left[{\mathrm{ML}}^{-1}{\mathrm{T}}^{-2}\right]$ It is a scalar quantity. (nis: Water proofing agents Water Wetting agents 2. Define Viscosity. What are it's units and dimensions? [May 13||AP,TS 15,16,18] Ans: Viscosity: The property of a fluid which opposes the relative motion between different layers is called viscosity. The S.I unit of viscosity is poiseiulle (pl) (or) pa s The dimensions of viscosity are $\left[{\mathrm{ML}}^{-1}{\mathrm{T}}^{-1}\right]$ 3. What is the principle behind the carbureror of an automobile? [TS 17,18||AP 15,19,19] Ans: The carburetor of an automobile works on Bernoulli's principle. They increase penetrati Working : The carburetor of automobile has a Venturi channel(nozzle) through which air flows with a large speed. The pressure is lowered at the narrow neck and the petrol is sucked up in the chamber to provide the correct mixture of air to fuel necessary for combustion. 10. What is angle of Ans: Angle of contact: $V$ the tangent drawntc contact. For Pure Water an 4. What is magnus effect? |AP 15| ITS $16,19,19$ | For Mercury, angl

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Updated on: Feb 9, 2023