Discussion
The maximum flow deflection achievable through an attached oblique shock at \( M_1 = 2 \) is nearest to
Answer: B
For air at Mach 2 the maximum deflection is close to 23 degrees. A wedge of larger half-angle cannot hold an attached shock, and a detached curved bow wave forms ahead of it instead. The maximum grows with Mach number, approaching about 45 degrees as the Mach number becomes very large.
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