When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis rad/s, then depth of parabola which the liquid assumes is

• A. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/175-298-2.png">
• B. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/175-298-1.png">
• C. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/175-298-3.png">
• D. <img src="/_files/images/mechanical-engineering/hydraulics-and-fluid-mechanics/175-298-4.png">