A nozzle is said to be a convergent nozzle

[A].	when the cross-section of the nozzle increases continuously from entrance to exit
[B].	when the cross-section of the nozzle decreases continuously from entrance to exit
[C].	when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
[D].	none of the above

Answer: Option B

Explanation:

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