Q. In a laminar flow between two fixed parallel plates, the shear stress is:

दो स्थिर समानांतर प्लेटों के बीच एक लामिना प्रवाह में, कतरनी तनाव है:

Maximum at mid-plane
मध्य तल पर अधिकतम

Zero throughout
सर्वत्र शून्य

Maximum at plate boundaries and zero at mid-plane
प्लेट सीमाओं पर अधिकतम और मध्य-तल पर शून्य

None of the above
इनमे से कोई भी नहीं

The velocity profile is parabolic, with zero velocity at plates and maximum at the mid-plane.

The velocity gradient (and thus shear stress) is:

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