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The figure below shows two flow lines for seepage across an interface between two soil media of different co-efficient of permeability. If entrance angle α1 = 30°, the exit angle α2 will be
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- 7.50°
- 14.03°
- 66.59°
- 75.96°
Correct Option: C
| = | ||||
| tanθ2 | k2 |
| ⇒ | = | |||
| tanθ2 | 4 × 10-7 |
∴ tanθ2 = 4 × tan30
∴ θ2 = 66.59°
