*/*_The critical pressure ratio (p‚Äö√á√á/p‚Äö√á√Ö) is given by?

(p‚Äö√á√á/p‚Äö√á√Ö) = [(n - 1)/2] n + (1/n)

(p‚Äö√á√á/p‚Äö√á√Ö) = [2/(n - 1)] n/(n + 1)

(p‚Äö√á√á/p‚Äö√á√Ö) = [2/(n + 1)] n/(n-1)

(p‚Äö√á√á/p‚Äö√á√Ö) = [(n + 1)/2] n - (1/n)

*/*_The critical pressure ratio (p‚Äö√á√á/p‚Äö√á√Ö

1.	/_The critical pressure ratio (p‚Äö√á√á/p‚Äö√á√Ö) is given by?
A.	(p‚Äö√á√á/p‚Äö√á√Ö) = [2/(n - 1)] n/(n + 1)
B.	(p‚Äö√á√á/p‚Äö√á√Ö) = [2/(n + 1)] n/(n-1)
C.	(p‚Äö√á√á/p‚Äö√á√Ö) = [(n - 1)/2] n + (1/n)
D.	(p‚Äö√á√á/p‚Äö√á√Ö) = [(n + 1)/2] n - (1/n)
Answer» C. (p‚Äö√á√á/p‚Äö√á√Ö) = [(n - 1)/2] n + (1/n)