Answer
See explanation
Work Step by Step
When the wedge half-angle $\boldsymbol{\delta}$ is greater than the maximum deflection angle $\boldsymbol{\theta}_{\text {max }}$, the shock becomes curved and detaches from the nose of the wedge, forming what is called a detached oblique shock or a bow wave. The numerical value of the shock angle at the nose is $\beta=90^{\circ}$.