Consider subsonic flow in a converging nozzle with fixed inlet conditions. If the back pressure is reduced to the to the exit velocity?

Type in the letter corresponding to your answer.

a$)$ The exit velocity remains constant at the inlet value.

b$)$ The exit velocity reduces below the inlet velocity.

c$)$ The exit velocity reaches sonic speed.

d$)$ The exit velocity increases beyond sonic speed

e$)$ The exit velocity is reduced to zero.

f$)$ None of the above