Viscosity is said to be internal friction between fluid layers. What – McqOptions

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1.	Viscosity is said to be internal friction between fluid layers. What type of force is it?
A.	Electromagnetic
B.	Gravitational
C.	Weak Nuclear forces
D.	Strong Nuclear forces
Answer» B. Gravitational

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Viscosity is said to be internal friction between fluid layers. What type of force is it?