Q. For a fluid in motion, if pressure at a point is same in all directions,then the fluid is said to be:

A
Real fluid
B
Non Newtonian fluid
C
Ideal fluid
D
Newtonian fluid
Solution:

Pressure at every point of an ideal fluid is equal in all directions, whether the fluid is at rest or in motion. A Newtonian fluid is a fluid in which the viscous stresses arising from its flow, at every point, are linearly proportional to the local strain rate.

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