[" 2.) A liquid is kept in a cylindrical vessel "],[" which is being rotated about a vertical axis "],[" through the centre of the circular base.If "],[" the radius of the vessel is "r" and angular "],[" velocity of rotation is "omega" ,then the difference "],[" in the heights of the liquid at the centre of "],[" the vessel and the edge is "],[[" (a) "(r omega)/(2g)," (b) "(omega^(2))/(2gr^(2))],[" (c) "sqrt(2gr omega)," (d) "(omega^(2))/(2gr^(2)),(2010)]],[" (c) "sqrt(2gr omega)," (d) "(omega^(2))/(2gr^(2))quad (2010)]