Question:-
During the measurement of viscosity of air flowing through a pipe we use the relation m = (pd4/128Q).(-dp/dx) under the condition that in the measuring section
Option (A)
there is a viscous zone near the wall and an inviscid core persists at the center
Option (B)
The entire cross-section is viscous
Option(C)
The flow can be assumed as potential flow
Option(D)
The flow is irritation
Correct Option:
(B)
question-answer-faq-3082