To observe unsteady separated flow in a diverging channel, bubbles are injected at each $10 \mathrm{~ms}$ interval at point $A$ as shown in figure. These bubblesact as tracer particles and follow the flow faithfully. The curved line $\mathbf{A B}$ shown at any instant represents:

(A) Streamline, streakline and pathline
(B) Streamline and pathline
(C) Only a pathline
(D) Only a streakline

Question ID - 155884 | SaraNextGen Top Answer

To observe unsteady separated flow in a diverging channel, bubbles are injected at each $10 \mathrm{~ms}$ interval at point $A$ as shown in figure. These bubblesact as tracer particles and follow the flow faithfully. The curved line $\mathbf{A B}$ shown at any instant represents:

(A) Streamline, streakline and pathline
(B) Streamline and pathline
(C) Only a pathline
(D) Only a streakline