The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by

• A. <img src="/_files/images/mechanical-engineering/hydraulic-machines/192-11-1.png">
• B. <img src="/_files/images/mechanical-engineering/hydraulic-machines/192-11-2.png">
• C. <img src="/_files/images/mechanical-engineering/hydraulic-machines/192-11-3.png">
• D. <img src="/_files/images/mechanical-engineering/hydraulic-machines/192-11-4.png">