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Question

Consider the following statements in respect of two-dimensional incompressible flow with velocity components u and v in x and y directions respectively:
1. The continuity equation is ux=vy
2. The acceleration in xdirection is ax=ut+uux+vuy
3. The condition of irrotationality is uy=vx
4. The equation of a streamline is udy = -vdx

Which of these statement are correct?


A
2 and 3 only
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B
1 and 2 only
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C
1, 2, and 3
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D
3 and 4
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