A liquid is kept in a cylindrical jar, which is rotated about the cylindrical axis. The liquid rises at its sides. The radius of the jar is `r` and speed of rotation is `omega` the difference in height at the centre and the sides of the jar is

Options

A. `frac(r^2omega^2)frac(g)(r^2g^2)`
B. `frac(r^2omega^2)frac(g)(r^2g^g)`
C. `frac(g)(r^2g^2)`
D. `(2g)/(r^2omega^2)`