A laser Doppler anemometer is a device used to measure – McqOptions

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1.	A laser Doppler anemometer is a device used to measure
A.	The turbulent velocity fluctuations in a flow
B.	Shear stress at a boundary
C.	Drag force on an aerofoil
D.	Surface tension of a fluid
E.	Wind direction
Answer» B. Shear stress at a boundary

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