Which of the following graph shows the relation between shear stress and velocity gradient for a non-Newtonian fluid?
A
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A For non-Newtonian fluid, the linear relationship between the shear stress and the deformation rate (velocity gradient in parallel flow) as expressed by the τ=ηdudy is not valid. For these fluids the viscosity varies with rate of deformation.
Graph between shear stress vs velocity gradient can be drawn as