Which of the following is not an illustration | vedclass

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(D) Viscosity is the property of fluids (liquids and gases) that offers resistance to flow. $(A)$ Gradation of lubricant oils depends on their viscosi

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Thickening of glass panes of old buildings

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(D) Viscosity is the property of fluids (liquids and gases) that offers resistance to flow. $(A)$ Gradation of lubricant oils depends on their viscosity. $(B)$ Blood flow velocity and viscosity are used to indicate cardiovascular health. $(C)$ The cleansing action of soap involves reducing surface tension and altering the viscosity of the medium to remove dirt. $(D)$ The thickening of glass panes at the bottom in old buildings is a common misconception; glass is an amorphous solid, not a supercooled liquid, and this phenomenon is not related to viscosity.

Column $-I$	Column $-II$
$(1)$ Angular momentum	$(a)$ Scalar
$(2)$ Potential energy	$(b)$ Vector
	$(c)$ Unit vector

Which of the following is not an illustration of viscosity?

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