Two capillaries of length l and 2l or radii R and 2R are connected in series. The net rate of flow of fluid through them will be

Two capillaries of length l and 2l or radii R and 2R are connected in

1.	Two capillaries of length l and 2l or radii R and 2R are connected in series. The net rate of flow of fluid through them will be
Answer» a)`8/9 XX (piPR^4)/(8etal)` B)`9/8 xx (piPR^4)/(8etal)` C)`3/7 xx (piPR^4)/(8etal)` d)`17/5 xx (piPR^4)/(8etal)` ANSWER :A

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Two capillaries of length l and 2l or radii R and 2R are connected in series. The net rate of flow of fluid through them will be

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