# What is the Mach angle of the flow ?

What is the Mach angle for a flow at Mach 2.0 ?

Asked on 2nd October 2019 in
Mach angle for a flow is defined as $\mu =sin^{-1}\left ( \frac{1}{M} \right )$
$$\\\Rightarrow \mu =sin^{-1}\left ( \frac{1}{2.0} \right ) \\\Rightarrow \mu =sin^{-1}\left ( 0.5 \right ) \\\Rightarrow \mu =30^{\circ}$$