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1. |
The velocity induced by an infinite vortex filament, with strength at some point is correctly given as______ (r, h are the distance and height to the point respectively). |
A. | V= ( frac { Gamma }{2 pi h} ) |
B. | V= ( frac { Gamma }{2 pi r} ) |
C. | V= ( frac { Gamma }{2h} ) |
D. | V= ( frac { Gamma }{2r} ) |
Answer» B. V= ( frac { Gamma }{2 pi r} ) | |