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				| 1. | If δ1 and δ2 are the laminar boundary layer thicknesses at a point M distant x from the leading edge when the Reynolds number of the flow are 100 and 484, respectively, then the ratio δ1/δ2 will be | 
| A. | 2.2 | 
| B. | 4.84 | 
| C. | 23.43 | 
| D. | 45.45 | 
| Answer» B. 4.84 | |