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Q1. | In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is |

A. | 22.5 m/sec. [Wrong Answer] |

B. | 33 m/sec. [Wrong Answer] |

C. | 40 m/sec. [Correct Answer] |

D. | 90 m/sec. [Wrong Answer] |

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Explanation:-
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⇒ In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is.

22.5 m/sec.

33 m/sec.

40 m/sec.

90 m/sec.