- 1(current)
Q. No.A viscous liquid is flowing through a straight tube under the action of a pressure difference across the ends of the tube. The tube is aligned with the \(x\)-axis. The force exerted on the tube by the liquid has the form:
\((a,b>0)\)
\((a,b>0)\)
| 1. | \(a\hat i\) | 2. | \(-a\hat i\) |
| 3. | \(a\hat i+b\hat j\) | 4. | \(-a\hat i+b\hat j\) |
Subtopic: Â Viscosity |
Level 3: 35%-60%
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A viscous liquid flows slowly through a pipe of cross-sectional radius \(R.\) The speed of the particles is a function of the distance from the axis of the pipe.
Assume that the flow is smooth. The variation of \(v\) vs \(r\) is best given by the graph:
Assume that the flow is smooth. The variation of \(v\) vs \(r\) is best given by the graph:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Viscosity |
 52%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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